W3 Total Cache: known security problems
41 known security problems reported for this WordPress plugin, with the affected versions, the fix and what to do.
Updated
In short
There are 41 known security problems on this page. Each one has a fixed version. Updating to version 2.11.0 or newer covers every fixed problem listed here.
Based on public reports. Check the plugin’s changelog. Watchfox AI may be wrong.
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A stranger could plant harmful code that runs for your visitors or admins (up to and including 2.10.7)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 2.10.7
- Fixed in
- 2.11.0
- What to do
- If your site has an affected version, update W3 Total Cache to version 2.11.0 or newer.
- Official ID
- CVE-2026-120019
- Report title
- W3 Total Cache <= 2.10.7 - Unauthenticated Stored Cross-Site Scripting via Comment Content via Predictable Minify Placeholder
- First reported
- Sources
- Wordfence, seen
A stranger could plant harmful code that runs for your visitors or admins (up to and including 2.10.7) (2)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 2.10.7
- Fixed in
- 2.11.0
- What to do
- If your site has an affected version, update W3 Total Cache to version 2.11.0 or newer.
- Official ID
- CVE-2026-111254
- Report title
- W3 Total Cache <= 2.10.7 - Unauthenticated Stored Cross-Site Scripting via Comment Content Cached as HTML after License Expiry
- First reported
- Sources
- Wordfence, seen
A stranger could plant harmful code that runs for your visitors or admins (up to and including 2.10.7) (3)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 2.10.7
- Fixed in
- 2.11.0
- What to do
- If your site has an affected version, update W3 Total Cache to version 2.11.0 or newer.
- Official ID
- CVE-2026-114178
- Report title
- W3 Total Cache <= 2.10.7 - Unauthenticated Stored Cross-Site Scripting
- First reported
- Sources
- Wordfence, seen
Someone with an author account on your site could read or delete private files on your server
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 2.10.5
- Fixed in
- 2.10.6
- What to do
- If your site has an affected version, update W3 Total Cache to version 2.10.6 or newer.
- Official ID
- CVE-2026-107321
- Report title
- W3 Total Cache <= 2.10.5 - Authenticated (Author+) Path Traversal
- First reported
- Sources
- Wordfence, seen
A stranger could plant harmful code that runs for your visitors or admins (up to and including 2.10.6)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 2.10.6
- Fixed in
- 2.10.7
- What to do
- If your site has an affected version, update W3 Total Cache to version 2.10.7 or newer.
- Official ID
- CVE-2026-87920
- Report title
- W3 Total Cache <= 2.10.6 - Unauthenticated Stored Cross-Site Scripting via Comment Content
- First reported
- Sources
- Wordfence, seen
A stranger could plant harmful code that runs for your visitors or admins (up to and including 2.10.5)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 2.10.5
- Fixed in
- 2.10.6
- What to do
- If your site has an affected version, update W3 Total Cache to version 2.10.6 or newer.
- Official ID
- CVE-2026-78438
- Report title
- W3 Total Cache <= 2.10.5 - Unauthenticated Stored Cross-Site Scripting via LazyLoad Background Mutator
- First reported
- Sources
- Wordfence, seen
A stranger could read or delete private files on your server (before 2.10.5)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Before 2.10.5
- Fixed in
- 2.10.5
- What to do
- If your site has an affected version, update W3 Total Cache to version 2.10.5 or newer.
- Official ID
- CVE-2026-18051
- Report title
- W3 Total Cache < 2.10.5 - Unauthenticated Path Traversal
- First reported
- Sources
- Wordfence, seen
A stranger could plant harmful code that runs for your visitors or admins (up to and including 2.10.3)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 2.10.3
- Fixed in
- 2.10.4
- What to do
- If your site has an affected version, update W3 Total Cache to version 2.10.4 or newer.
- Official ID
- CVE-2026-18109
- Report title
- W3 Total Cache <= 2.10.3 - Unauthenticated Stored Cross-Site Scripting via Comment Author Name
- First reported
- Sources
- Wordfence, seen
A stranger could read or delete private files on your server (up to and including 2.10.2)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 2.10.2
- Fixed in
- 2.10.3
- What to do
- If your site has an affected version, update W3 Total Cache to version 2.10.3 or newer.
- Official ID
- CVE-2026-66695
- Report title
- W3 Total Cache <= 2.10.2 - Unauthenticated Path Traversal
- First reported
- Sources
- Wordfence, seen
A stranger could read or delete private files on your server (up to and including 2.9.4)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 2.9.4
- Fixed in
- 2.10.0
- What to do
- If your site has an affected version, update W3 Total Cache to version 2.10.0 or newer.
- Official ID
- CVE-2026-9282
- Report title
- W3 Total Cache <= 2.9.4 - Unauthenticated Arbitrary File Read via 'f_array[]' Parameter
- First reported
- Sources
- Wordfence, seen
A stranger could use it to harm your site (up to and including 2.9.4)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 2.9.4
- Fixed in
- 2.10.0
- What to do
- If your site has an affected version, update W3 Total Cache to version 2.10.0 or newer.
- Official ID
- CVE-2026-57623
- Report title
- W3 Total Cache <= 2.9.4 - Unauthenticated Arbitrary Code Execution
- First reported
- Sources
- Wordfence, seen
A stranger could use it to harm your site (up to and including 2.9.3)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 2.9.3
- Fixed in
- 2.9.4
- What to do
- If your site has an affected version, update W3 Total Cache to version 2.9.4 or newer.
- Official ID
- CVE-2026-5032
- Report title
- W3 Total Cache <= 2.9.3 - Unauthenticated Security Token Exposure via User-Agent Header
- First reported
- Sources
- Wordfence, seen
Someone could do things on your site they should not be allowed to
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 2.9.1
- Fixed in
- 2.9.2
- What to do
- If your site has an affected version, update W3 Total Cache to version 2.9.2 or newer.
- Official ID
- CVE-2026-39595
- Report title
- W3 Total Cache <= 2.9.1 - Missing Authorization
- First reported
- Sources
- Wordfence, seen
A stranger could use it to harm your site (up to and including 2.9.1)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 2.9.1
- Fixed in
- 2.9.2
- What to do
- If your site has an affected version, update W3 Total Cache to version 2.9.2 or newer.
- Official ID
- CVE-2026-27384
- Report title
- W3 Total Cache <= 2.9.1 - Unauthenticated Arbitrary Code Execution
- First reported
- Sources
- Wordfence, seen
A stranger could use it to harm your site (up to and including 2.8.12)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 2.8.12
- Fixed in
- 2.8.13
- What to do
- If your site has an affected version, update W3 Total Cache to version 2.8.13 or newer.
- Official ID
- CVE-2025-9501
- Report title
- W3 Total Cache <= 2.8.12 - Unauthenticated Command Injection
- First reported
- Sources
- Wordfence, seen
Anyone with an account on your site, even a basic one could make your server visit other addresses on their behalf
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 2.8.1
- Fixed in
- 2.8.2
- What to do
- If your site has an affected version, update W3 Total Cache to version 2.8.2 or newer.
- Official ID
- CVE-2024-12365
- Report title
- W3 Total Cache <= 2.8.1 - Authenticated (Subscriber+) Missing Authorization to Server-Side Request Forgery
- First reported
- Sources
- Wordfence, seen
A stranger could do things on your site they should not be allowed to
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 2.8.1
- Fixed in
- 2.8.2
- What to do
- If your site has an affected version, update W3 Total Cache to version 2.8.2 or newer.
- Official ID
- CVE-2024-12006
- Report title
- W3 Total Cache <= 2.8.1 Missing Authorization to Unauthenticated Plugin Deactivation and Extensions Activation/Deactivation
- First reported
- Sources
- Wordfence, seen
Someone could use it to harm your site (up to and including 2.8.1)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 2.8.1
- Fixed in
- 2.8.2
- What to do
- If your site has an affected version, update W3 Total Cache to version 2.8.2 or newer.
- Official ID
- CVE-2024-12008
- Report title
- W3 Total Cache <= 2.8.1 Information Exposure via Log Files
- First reported
- Sources
- Wordfence, seen
Someone could use it to harm your site (up to and including 2.7.5)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 2.7.5
- Fixed in
- 2.7.6
- What to do
- If your site has an affected version, update W3 Total Cache to version 2.7.6 or newer.
- Official ID
- CVE-2023-5359
- Report title
- W3 Total Cache <= 2.7.5 - Sensitive Credentials Stored in Plaintext
- First reported
- Sources
- Wordfence, seen
Someone could use it to harm your site (up to and including 2.2.2)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 2.2.2
- Fixed in
- 2.2.3
- What to do
- If your site has an affected version, update W3 Total Cache to version 2.2.3 or newer.
- Official ID
- CVE-2022-31090
- Report title
- Guzzle <= 6.5.7 and 7.0-7.4.4 - Information Exposure
- First reported
- Sources
- Wordfence, seen
Someone could plant harmful code that runs for your visitors or admins (before 2.1.4)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Before 2.1.4
- Fixed in
- 2.1.4
- What to do
- If your site has an affected version, update W3 Total Cache to version 2.1.4 or newer.
- Official ID
- CVE-2021-24436
- Report title
- W3 Total Cache <= 2.1.3 - Reflected Cross-Site Scripting via extension
- First reported
- Sources
- Wordfence, seen
Someone could plant harmful code that runs for your visitors or admins (from 0.5 up to and including 2.1.4)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- From 0.5 up to and including 2.1.4
- Fixed in
- 2.1.5
- What to do
- If your site has an affected version, update W3 Total Cache to version 2.1.5 or newer.
- Official ID
- CVE-2021-24452
- Report title
- W3 Total Cache <= 2.1.4 - Reflected Cross-Site Scripting via extension
- First reported
- Sources
- Wordfence, seen
Someone could plant harmful code that runs for your visitors or admins (before 2.1.3)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Before 2.1.3
- Fixed in
- 2.1.3
- What to do
- If your site has an affected version, update W3 Total Cache to version 2.1.3 or newer.
- Official ID
- CVE-2021-24427
- Report title
- W3 Total Cache <= 2.1.2 Authenticated (Admin+) Stored Cross-Site Scripting
- First reported
- Sources
- Wordfence, seen
Someone could use it to harm your site (from 0.9.2.6 up to and including 0.9.3)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- From 0.9.2.6 up to and including 0.9.3
- Fixed in
- 0.9.4
- What to do
- If your site has an affected version, update W3 Total Cache to version 0.9.4 or newer.
- Official ID
- CVE-2019-6715
- Report title
- W3 Total Cache 0.9.2.6-0.9.3 - File Read / Directory Traversal
- First reported
- Sources
- Wordfence, seen
Someone could use it to harm your site (up to and including 0.9.2.4)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 0.9.2.4
- Fixed in
- 0.9.2.5
- What to do
- If your site has an affected version, update W3 Total Cache to version 0.9.2.5 or newer.
- Official ID
- CVE-2012-6077
- Report title
- W3 Total Cache <= 0.9.2.4 - Password Hash Extraction
- First reported
- Sources
- Wordfence, seen
Someone could see private information they should not see
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 0.9.2.4
- Fixed in
- 0.9.2.5
- What to do
- If your site has an affected version, update W3 Total Cache to version 0.9.2.5 or newer.
- Official ID
- CVE-2012-6079
- Report title
- W3 Total Cache <= 0.9.2.4 - Sensitive Information Exposure
- First reported
- Sources
- Wordfence, seen
Someone could use it to harm your site (up to and including 0.9.2.4) (2)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 0.9.2.4
- Fixed in
- 0.9.2.5
- What to do
- If your site has an affected version, update W3 Total Cache to version 0.9.2.5 or newer.
- Official ID
- CVE-2012-6078
- Report title
- W3 Total Cache <= 0.9.2.4 - Insecure Cryptography to Sensitive Information Disclosure
- First reported
- Sources
- Wordfence, seen
Someone could use it to harm your site (up to and including 0.9.7.3)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 0.9.7.3
- Fixed in
- 0.9.7.4
- What to do
- If your site has an affected version, update W3 Total Cache to version 0.9.7.4 or newer.
- Report title
- W3 Total Cache <= 0.9.7.3 - Server Side Request Forgery
- First reported
- Sources
- Wordfence, seen
Someone could use it to harm your site (up to and including 0.9.7.3) (2)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 0.9.7.3
- Fixed in
- 0.9.7.4
- What to do
- If your site has an affected version, update W3 Total Cache to version 0.9.7.4 or newer.
- Report title
- W3 Total Cache <= 0.9.7.3 - Improper Input Validation via openssl_verify
- First reported
- Sources
- Wordfence, seen
Someone could plant harmful code that runs for your visitors or admins (up to and including 0.9.7.3)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 0.9.7.3
- Fixed in
- 0.9.7.4
- What to do
- If your site has an affected version, update W3 Total Cache to version 0.9.7.4 or newer.
- Report title
- W3 Total Cache plugin <= 0.9.7.3 - Reflected Cross-Site Scripting
- First reported
- Sources
- Wordfence, seen
Someone could use it to harm your site (up to and including 0.9.4.1)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 0.9.4.1
- Fixed in
- 0.9.5
- What to do
- If your site has an affected version, update W3 Total Cache to version 0.9.5 or newer.
- Report title
- W3 Total Cache <= 0.9.4.1 - Weak validation of Amazon SNS push messages
- First reported
- Sources
- Wordfence, seen
Someone could make your server visit other addresses on their behalf
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 0.9.4
- Fixed in
- 0.9.5
- What to do
- If your site has an affected version, update W3 Total Cache to version 0.9.5 or newer.
- Report title
- W3 Total Cache <= 0.9.4 - Server-Side Request Forgery leading to Host Information Disclosure
- First reported
- Sources
- Wordfence, seen
Someone could use it to harm your site (up to and including 0.9.4.1) (2)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 0.9.4.1
- Fixed in
- 0.9.5
- What to do
- If your site has an affected version, update W3 Total Cache to version 0.9.5 or newer.
- Report title
- W3 Total Cache <= 0.9.4.1 - Security Token Bypass via Type Juggling
- First reported
- Sources
- Wordfence, seen
Someone could run their own code on your site and take it over (up to and including 0.9.4.1)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 0.9.4.1
- Fixed in
- 0.9.5
- What to do
- If your site has an affected version, update W3 Total Cache to version 0.9.5 or newer.
- Report title
- W3 Total Cache <= 0.9.4.1 - Arbitrary File Upload
- First reported
- Sources
- Wordfence, seen
Someone could use it to harm your site (up to and including 0.9.4.1) (3)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 0.9.4.1
- Fixed in
- 0.9.5
- What to do
- If your site has an affected version, update W3 Total Cache to version 0.9.5 or newer.
- Report title
- W3 Total Cache <= 0.9.4.1 - Authenticated Arbitrary File Download
- First reported
- Sources
- Wordfence, seen
Someone could use it to harm your site (up to and including 0.9.4.1) (4)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 0.9.4.1
- Fixed in
- 0.9.5
- What to do
- If your site has an affected version, update W3 Total Cache to version 0.9.5 or newer.
- Report title
- W3 Total Cache <= 0.9.4.1 - Arbitrary Code Execution via settings import
- First reported
- Sources
- Wordfence, seen
Someone could plant harmful code that runs for your visitors or admins (up to and including 0.9.4.1)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 0.9.4.1
- Fixed in
- 0.9.5
- What to do
- If your site has an affected version, update W3 Total Cache to version 0.9.5 or newer.
- Report title
- W3 Total Cache <= 0.9.4.1 - Cross-Site Scripting via request_id
- First reported
- Sources
- Wordfence, seen
Someone could plant harmful code that runs for your visitors or admins (up to and including 0.9.4)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 0.9.4
- Fixed in
- 0.9.4.1
- What to do
- If your site has an affected version, update W3 Total Cache to version 0.9.4.1 or newer.
- Official ID
- CVE-2014-8724
- Report title
- W3 Total Cache <= 0.9.4 - Cross-Site Scripting
- First reported
- Sources
- Wordfence, seen
Someone could trick a logged-in admin into changing settings without knowing
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 0.9.4
- Fixed in
- 0.9.4.1
- What to do
- If your site has an affected version, update W3 Total Cache to version 0.9.4.1 or newer.
- Official ID
- CVE-2014-9414
- Report title
- W3 Total Cache <= 0.9.4 - Cross-Site Request Forgery
- First reported
- Sources
- Wordfence, seen
Someone could plant harmful code that runs for your visitors or admins (up to and including 0.9.4) (2)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 0.9.4
- Fixed in
- 0.9.4.1
- What to do
- If your site has an affected version, update W3 Total Cache to version 0.9.4.1 or newer.
- Report title
- W3 Total Cache <= 0.9.4 - Cross-Site Request Forgery leading to Stored Cross-Site Scripting
- First reported
- Sources
- Wordfence, seen
Someone could run their own code on your site and take it over (up to and including 0.9.2.8)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 0.9.2.8
- Fixed in
- 0.9.2.9
- What to do
- If your site has an affected version, update W3 Total Cache to version 0.9.2.9 or newer.
- Official ID
- CVE-2013-2010
- Report title
- W3 Total Cache <= 0.9.2.8 - Remote Code Execution
- First reported
- Sources
- Wordfence, seen
Where this comes from
We collect these reports from public security sources and rewrite them in plain words. Each problem shows its sources and the date we first saw it. This page never says whether your own site is affected: only a check of your site’s versions can tell.
Get an email when your site is affected.
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