LiteSpeed Cache: known security problems
29 known security problems reported for this WordPress plugin, with the affected versions, the fix and what to do.
Updated
In short
There are 29 known security problems on this page. Each one has a fixed version. Updating to version 7.9.2 or newer covers every fixed problem listed here.
Based on public reports. Check the plugin’s changelog. Watchfox AI may be wrong.
Get an email when your site is affected: install Watchfox AI (free)
Anyone with an account on your site, even a basic one could plant harmful code that runs for your visitors or admins
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 7.9.1
- Fixed in
- 7.9.2
- What to do
- If your site has an affected version, update LiteSpeed Cache to version 7.9.2 or newer.
- Official ID
- CVE-2026-109215
- Report title
- LiteSpeed Cache <= 7.9.1 - Authenticated (Subscriber+) Stored Cross-Site Scripting via VPI Image Attribute Re-Serialization
- First reported
- Sources
- Wordfence, seen
A stranger could plant harmful code that runs for your visitors or admins (up to and including 7.9.1)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 7.9.1
- Fixed in
- 7.9.2
- What to do
- If your site has an affected version, update LiteSpeed Cache to version 7.9.2 or newer.
- Official ID
- CVE-2026-116763
- Report title
- LiteSpeed Cache <= 7.9.1 - Unauthenticated Stored Cross-Site Scripting via HTML Minifier Predictable Placeholder (md5(REQUEST_TIME) + two-pass str_replace)
- First reported
- Sources
- Wordfence, seen
A stranger could plant harmful code that runs for your visitors or admins (before 7.9.2)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Before 7.9.2
- Fixed in
- 7.9.2
- What to do
- If your site has an affected version, update LiteSpeed Cache to version 7.9.2 or newer.
- Official ID
- CVE-2026-113500
- Report title
- LiteSpeed Cache < 7.9.2 - Unauthenticated Stored Cross-Site Scripting
- First reported
- Sources
- Wordfence, seen
Someone could do things on your site they should not be allowed to (before 7.9.2)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Before 7.9.2
- Fixed in
- 7.9.2
- What to do
- If your site has an affected version, update LiteSpeed Cache to version 7.9.2 or newer.
- Official ID
- CVE-2026-113501
- Report title
- LiteSpeed Cache < 7.9.2 - Missing Authorization
- First reported
- Sources
- Wordfence, seen
A stranger could plant harmful code that runs for your visitors or admins (before 7.9.2) (2)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Before 7.9.2
- Fixed in
- 7.9.2
- What to do
- If your site has an affected version, update LiteSpeed Cache to version 7.9.2 or newer.
- Official ID
- CVE-2026-113499
- Report title
- LiteSpeed Cache < 7.9.2 - Unauthenticated Stored Cross-Site Scripting
- First reported
- Sources
- Wordfence, seen
A stranger could use it to harm your site
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 7.9
- Fixed in
- 7.9.1
- What to do
- If your site has an affected version, update LiteSpeed Cache to version 7.9.1 or newer.
- Official ID
- CVE-2026-114190
- Report title
- LiteSpeed Cache <= 7.9 - Unauthenticated Information Exposure
- First reported
- Sources
- Wordfence, seen
Someone could plant harmful code that runs for your visitors or admins (up to and including 7.9)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 7.9
- Fixed in
- 7.9.1
- What to do
- If your site has an affected version, update LiteSpeed Cache to version 7.9.1 or newer.
- Official ID
- CVE-2026-76579
- Report title
- LiteSpeed Cache <= 7.9 - Reflected Cross-Site Scripting via ESI 'esi' Parameter
- First reported
- Sources
- Wordfence, seen
A stranger 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 7.9
- Fixed in
- 7.9.1
- What to do
- If your site has an affected version, update LiteSpeed Cache to version 7.9.1 or newer.
- Official ID
- CVE-2026-84761
- Report title
- LiteSpeed Cache <= 7.9 - Unauthenticated Server-Side Request Forgery
- First reported
- Sources
- Wordfence, seen
A stranger could plant harmful code that runs for your visitors or admins (up to and including 7.8.1)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 7.8.1
- Fixed in
- 7.9
- What to do
- If your site has an affected version, update LiteSpeed Cache to version 7.9 or newer.
- Official ID
- CVE-2026-18978
- Report title
- LiteSpeed Cache <= 7.8.1 - Unauthenticated Stored Cross-Site Scripting via Comment Content
- First reported
- Sources
- Wordfence, seen
Someone with an author account on your site could plant harmful code that runs for your visitors or admins
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 7.7
- Fixed in
- 7.8
- What to do
- If your site has an affected version, update LiteSpeed Cache to version 7.8 or newer.
- Official ID
- CVE-2026-3129
- Report title
- LiteSpeed Cache <= 7.7 - Authenticated (Author+) Stored Cross-Site Scripting via img Tag Attributes
- First reported
- Sources
- Wordfence, seen
A stranger could plant harmful code that runs for your visitors or admins (up to and including 7.7)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 7.7
- Fixed in
- 7.8
- What to do
- If your site has an affected version, update LiteSpeed Cache to version 7.8 or newer.
- Official ID
- CVE-2026-3375
- Report title
- LiteSpeed Cache <= 7.7 - Unauthenticated Stored Cross-Site Scripting via QUIC.cloud CCSS/UCSS REST API Endpoints
- First reported
- Sources
- Wordfence, seen
Someone could plant harmful code that runs for your visitors or admins (up to and including 7.5.0.1)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 7.5.0.1
- Fixed in
- 7.6
- What to do
- If your site has an affected version, update LiteSpeed Cache to version 7.6 or newer.
- Official ID
- CVE-2025-12450
- Report title
- LiteSpeed Cache <= 7.5.0.1 - Reflected Cross-Site Scripting
- First reported
- Sources
- Wordfence, seen
Someone with an editor account on your site 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 7.0.1
- Fixed in
- 7.1
- What to do
- If your site has an affected version, update LiteSpeed Cache to version 7.1 or newer.
- Official ID
- CVE-2025-47437
- Report title
- LiteSpeed Cache <= 7.0.1 - Authenticated (Editor+) Server-Side Request Forgery
- First reported
- Sources
- Wordfence, seen
Someone with a contributor account on your site could plant harmful code that runs for your visitors or admins (up to and including 6.5.2)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 6.5.2
- Fixed in
- 6.5.3
- What to do
- If your site has an affected version, update LiteSpeed Cache to version 6.5.3 or newer.
- Official ID
- CVE-2024-51915
- Report title
- LiteSpeed Cache <= 6.5.2 - Authenticated (Contributor+) Stored Cross-Site Scripting
- First reported
- Sources
- Wordfence, seen
A stranger could take over your site as an admin (up to and including 6.5.1)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 6.5.1
- Fixed in
- 6.5.2
- What to do
- If your site has an affected version, update LiteSpeed Cache to version 6.5.2 or newer.
- Official ID
- CVE-2024-50550
- Report title
- LiteSpeed Cache <= 6.5.1 - Unauthenticated Privilege Escalation
- 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 6.4.1
- Fixed in
- 6.5.1
- What to do
- If your site has an affected version, update LiteSpeed Cache to version 6.5.1 or newer.
- Official ID
- CVE-2024-47637
- Report title
- LiteSpeed Cache <= 6.4.1 - Authenticated (Author+) Path Traversal
- First reported
- Sources
- Wordfence, seen
Someone with a contributor account on your site could plant harmful code that runs for your visitors or admins (up to and including 6.5.0.2)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 6.5.0.2
- Fixed in
- 6.5.1
- What to do
- If your site has an affected version, update LiteSpeed Cache to version 6.5.1 or newer.
- Official ID
- CVE-2024-47373
- Report title
- LiteSpeed Cache <= 6.5.0.2 - Authenticated (Contributor+) Stored Cross-Site Scripting
- First reported
- Sources
- Wordfence, seen
A stranger could plant harmful code that runs for your visitors or admins (up to and including 6.5.0.2)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 6.5.0.2
- Fixed in
- 6.5.1
- What to do
- If your site has an affected version, update LiteSpeed Cache to version 6.5.1 or newer.
- Official ID
- CVE-2024-47374
- Report title
- LiteSpeed Cache <= 6.1 - Unauthenticated Stored Cross-Site Scripting
- First reported
- Sources
- Wordfence, seen
Someone who already has an admin account could plant harmful code that runs for your visitors or admins
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 6.4.1
- Fixed in
- 6.5
- What to do
- If your site has an affected version, update LiteSpeed Cache to version 6.5 or newer.
- Official ID
- CVE-2024-9169
- Report title
- litespeed cache <= 6.4.1 - Authenticated (Administrator+) Stored Cross-Site Scripting
- First reported
- Sources
- Wordfence, seen
A stranger 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 6.4.1
- Fixed in
- 6.5.0.1
- What to do
- If your site has an affected version, update LiteSpeed Cache to version 6.5.0.1 or newer.
- Official ID
- CVE-2024-44000
- Report title
- LiteSpeed Cache <= 6.4.1 - Unauthenticated Sensitive Information Exposure via Log Files
- First reported
- Sources
- Wordfence, seen
A stranger could take over your site as an admin (up to and including 6.3.0.1)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 6.3.0.1
- Fixed in
- 6.4
- What to do
- If your site has an affected version, update LiteSpeed Cache to version 6.4 or newer.
- Official ID
- CVE-2024-28000
- Report title
- LiteSpeed Cache <= 6.3.0.1 - Unauthenticated Privilege Escalation
- First reported
- Sources
- Wordfence, seen
Someone could plant harmful code that runs for your visitors or admins (up to and including 6.2.0.1)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 6.2.0.1
- Fixed in
- 6.3
- What to do
- If your site has an affected version, update LiteSpeed Cache to version 6.3 or newer.
- Official ID
- CVE-2024-3246
- Report title
- LiteSpeed Cache <= 6.2.0.1 - Cross-Site Request Forgery to Stored Cross-Site Scripting
- First reported
- Sources
- Wordfence, seen
Someone could do things on your site they should not be allowed to (up to and including 5.7)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 5.7
- Fixed in
- 5.7.0.1
- What to do
- If your site has an affected version, update LiteSpeed Cache to version 5.7.0.1 or newer.
- Official ID
- CVE-2023-45000
- Report title
- LiteSpeed Cache <= 5.7 - Missing Authorization via update_cdn_status
- First reported
- Sources
- Wordfence, seen
A stranger could plant harmful code that runs for your visitors or admins (up to and including 5.7)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 5.7
- Fixed in
- 5.7.0.1
- What to do
- If your site has an affected version, update LiteSpeed Cache to version 5.7.0.1 or newer.
- Official ID
- CVE-2023-40000
- Report title
- LiteSpeed Cache <= 5.7 - Unauthenticated Stored Cross-Site Scripting via 'nameservers' and '_msg'
- First reported
- Sources
- Wordfence, seen
Someone with a contributor account on your site could plant harmful code that runs for your visitors or admins (up to and including 5.6)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 5.6
- Fixed in
- 5.7
- What to do
- If your site has an affected version, update LiteSpeed Cache to version 5.7 or newer.
- Official ID
- CVE-2023-4372
- Report title
- LiteSpeed Cache <= 5.6 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode
- First reported
- Sources
- Wordfence, seen
Someone could do things on your site they should not be allowed to (up to and including 5.3)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 5.3
- Fixed in
- 5.3.1
- What to do
- If your site has an affected version, update LiteSpeed Cache to version 5.3.1 or newer.
- Official ID
- CVE-2022-46800
- Report title
- LiteSpeed Cache <= 5.3 - Missing Authorization to Toggle Crawler State
- First reported
- Sources
- Wordfence, seen
Someone could plant harmful code that runs for your visitors or admins (from 1.0.15 up to and including 4.4.3)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- From 1.0.15 up to and including 4.4.3
- Fixed in
- 4.4.4
- What to do
- If your site has an affected version, update LiteSpeed Cache to version 4.4.4 or newer.
- Official ID
- CVE-2021-24963
- Report title
- LiteSpeed Cache <= 4.4.3 - Reflected Cross-Site Scripting via qc_res
- First reported
- Sources
- Wordfence, seen
Someone could use it to harm your site
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- From 1.0.15 up to and including 4.4.3
- Fixed in
- 4.4.4
- What to do
- If your site has an affected version, update LiteSpeed Cache to version 4.4.4 or newer.
- Official ID
- CVE-2021-24964
- Report title
- LiteSpeed Cache <= 4.4.3 - Authorization Bypass
- First reported
- Sources
- Wordfence, seen
Someone could plant harmful code that runs for your visitors or admins (up to and including 3.6)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 3.6
- Fixed in
- 3.6.1
- What to do
- If your site has an affected version, update LiteSpeed Cache to version 3.6.1 or newer.
- Official ID
- CVE-2020-29172
- Report title
- LiteSpeed Cache <= 3.6 - Authenticated Stored Cross-Site Scripting via IP setting
- 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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