Advanced Custom Fields: Extended: known security problems
20 known security problems reported for this WordPress plugin, with the affected versions, the fix and what to do.
Updated
In short
There are 20 known security problems on this page. Each one has a fixed version. Updating to version 0.9.2.8 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 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 0.9.2.7
- Fixed in
- 0.9.2.8
- What to do
- If your site has an affected version, update Advanced Custom Fields: Extended to version 0.9.2.8 or newer.
- Official ID
- CVE-2026-110305
- Report title
- Advanced Custom Fields: Extended <= 0.9.2.7 - Unauthenticated Sensitive Information Exposure in 'acf[<mapped_field>]' Parameter via {get_user} Template Tag Injection
- First reported
- Sources
- Wordfence, seen
A stranger could do things on your site they should not be allowed to (up to and including 0.9.2.7)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 0.9.2.7
- Fixed in
- 0.9.2.8
- What to do
- If your site has an affected version, update Advanced Custom Fields: Extended to version 0.9.2.8 or newer.
- Official ID
- CVE-2026-2839
- Report title
- Advanced Custom Fields: Extended <= 0.9.2.7 - Missing Authorization to Unauthenticated Data Exposure via Multiple AJAX Endpoints
- First reported
- Sources
- Wordfence, seen
A stranger could do things on your site they should not be allowed to (up to and including 0.9.2.6)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 0.9.2.6
- Fixed in
- 0.9.2.7
- What to do
- If your site has an affected version, update Advanced Custom Fields: Extended to version 0.9.2.7 or newer.
- Official ID
- CVE-2026-10752
- Report title
- Advanced Custom Fields: Extended <= 0.9.2.6 - Missing Authorization to Unauthenticated Arbitrary Attachment Deletion via Email Action Dynamic File Field
- First reported
- Sources
- Wordfence, seen
A stranger could take over your site as an admin (from 0.9.2.7 up to and including 0.9.2.7)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- From 0.9.2.7 up to and including 0.9.2.7
- Fixed in
- 0.9.2.8
- What to do
- If your site has an affected version, update Advanced Custom Fields: Extended to version 0.9.2.8 or newer.
- Official ID
- CVE-2026-94262
- Report title
- Advanced Custom Fields: Extended 0.9.2.7 - Unauthenticated Arbitrary Non-Admin Account Takeover
- First reported
- Sources
- Wordfence, seen
Someone with a contributor account on your site could plant harmful code that runs for your visitors or admins (from 0.8.9.4 up to and including 0.9.2.7)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- From 0.8.9.4 up to and including 0.9.2.7
- Fixed in
- 0.9.2.8
- What to do
- If your site has an affected version, update Advanced Custom Fields: Extended to version 0.9.2.8 or newer.
- Official ID
- CVE-2026-94264
- Report title
- Advanced Custom Fields: Extended 0.8.9.4 - 0.9.2.7 - Authenticated (Contributor+) Stored Cross-Site Scripting
- First reported
- Sources
- Wordfence, seen
A stranger could take over your site as an admin (from 0.9.2.7 up to and including 0.9.2.7) (2)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- From 0.9.2.7 up to and including 0.9.2.7
- Fixed in
- 0.9.2.8
- What to do
- If your site has an affected version, update Advanced Custom Fields: Extended to version 0.9.2.8 or newer.
- Official ID
- CVE-2026-94268
- Report title
- Advanced Custom Fields: Extended 0.9.2.7 - Unauthenticated Privilege Escalation via Account Takeover
- First reported
- Sources
- Wordfence, seen
A stranger could run their own code on your site and take it over (before 0.9.2.8)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Before 0.9.2.8
- Fixed in
- 0.9.2.8
- What to do
- If your site has an affected version, update Advanced Custom Fields: Extended to version 0.9.2.8 or newer.
- Official ID
- CVE-2026-94267
- Report title
- Advanced Custom Fields: Extended <= 0.9.2.7 - Unauthenticated Remote Code Execution
- First reported
- Sources
- Wordfence, seen
A stranger could use it to harm your site (from 0.9.2.4 up to and including 0.9.2.7)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- From 0.9.2.4 up to and including 0.9.2.7
- Fixed in
- 0.9.2.8
- What to do
- If your site has an affected version, update Advanced Custom Fields: Extended to version 0.9.2.8 or newer.
- Official ID
- CVE-2026-94263
- Report title
- Advanced Custom Fields: Extended 0.9.2.4 - 0.9.2.7 - Unauthenticated Arbitrary Shortcode Execution
- First reported
- Sources
- Wordfence, seen
A stranger 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 0.9.2.7
- Fixed in
- 0.9.2.8
- What to do
- If your site has an affected version, update Advanced Custom Fields: Extended to version 0.9.2.8 or newer.
- Official ID
- CVE-2026-112313
- Report title
- Advanced Custom Fields: Extended <= 0.9.2.7 - Unauthenticated Stored Cross-Site Scripting
- First reported
- Sources
- Wordfence, seen
A stranger 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 0.9.2.7
- Fixed in
- 0.9.2.8
- What to do
- If your site has an affected version, update Advanced Custom Fields: Extended to version 0.9.2.8 or newer.
- Official ID
- CVE-2026-112311
- Report title
- Advanced Custom Fields: Extended <= 0.9.2.7 - Unauthenticated Arbitrary File Deletion
- First reported
- Sources
- Wordfence, seen
Someone could do things on your site they should not be allowed to (up to and including 0.9.2.7)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 0.9.2.7
- Fixed in
- 0.9.2.8
- What to do
- If your site has an affected version, update Advanced Custom Fields: Extended to version 0.9.2.8 or newer.
- Official ID
- CVE-2026-112312
- Report title
- Advanced Custom Fields: Extended <= 0.9.2.7 - Missing Authorization
- First reported
- Sources
- Wordfence, seen
A stranger could take over your site as an admin (from 0.9.2.2 up to and including 0.9.2.6)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- From 0.9.2.2 up to and including 0.9.2.6
- Fixed in
- 0.9.2.7
- What to do
- If your site has an affected version, update Advanced Custom Fields: Extended to version 0.9.2.7 or newer.
- Official ID
- CVE-2026-80467
- Report title
- Advanced Custom Fields: Extended 0.9.2.2 - 0.9.2.6 - Unauthenticated Privilege Escalation
- First reported
- Sources
- Wordfence, seen
A stranger could take over your site as an admin (before 0.9.2.7)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Before 0.9.2.7
- Fixed in
- 0.9.2.7
- What to do
- If your site has an affected version, update Advanced Custom Fields: Extended to version 0.9.2.7 or newer.
- Official ID
- CVE-2026-12526
- Report title
- Advanced Custom Fields: Extended < 0.9.2.7 - Unauthenticated Privilege Escalation via Administrator Account Takeover
- First reported
- Sources
- Wordfence, seen
Someone could do things on your site they should not be allowed to (up to and including 0.9.2.6)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 0.9.2.6
- Fixed in
- 0.9.2.7
- What to do
- If your site has an affected version, update Advanced Custom Fields: Extended to version 0.9.2.7 or newer.
- Official ID
- CVE-2026-81284
- Report title
- Advanced Custom Fields: Extended <= 0.9.2.6 - Missing Authorization
- First reported
- Sources
- Wordfence, seen
A stranger could take over your site as an admin (up to and including 0.9.2.5)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 0.9.2.5
- Fixed in
- 0.9.2.6
- What to do
- If your site has an affected version, update Advanced Custom Fields: Extended to version 0.9.2.6 or newer.
- Official ID
- CVE-2026-8809
- Report title
- Advanced Custom Fields: Extended <= 0.9.2.5 - Unauthenticated Privilege Escalation via Validation Bypass to '_acf_post_id' Parameter
- First reported
- Sources
- Wordfence, seen
A stranger could use it to harm your site (up to and including 0.9.2.3)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 0.9.2.3
- Fixed in
- 0.9.2.4
- What to do
- If your site has an affected version, update Advanced Custom Fields: Extended to version 0.9.2.4 or newer.
- Official ID
- CVE-2025-15463
- Report title
- Advanced Custom Fields: Extended <= 0.9.2.3 - Unauthenticated Arbitrary Shortcode Execution
- First reported
- Sources
- Wordfence, seen
A stranger could take over your site as an admin (up to and including 0.9.2.1)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 0.9.2.1
- Fixed in
- 0.9.2.2
- What to do
- If your site has an affected version, update Advanced Custom Fields: Extended to version 0.9.2.2 or newer.
- Official ID
- CVE-2025-14533
- Report title
- Advanced Custom Fields: Extended <= 0.9.2.1 - Unauthenticated Privilege Escalation via Insert User Form Action
- First reported
- Sources
- Wordfence, seen
A stranger could run their own code on your site and take it over (from 0.9.0.5 up to and including 0.9.1.1)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- From 0.9.0.5 up to and including 0.9.1.1
- Fixed in
- 0.9.2
- What to do
- If your site has an affected version, update Advanced Custom Fields: Extended to version 0.9.2 or newer.
- Official ID
- CVE-2025-13486
- Report title
- Advanced Custom Fields: Extended 0.9.0.5 - 0.9.1.1 - Unauthenticated Remote Code Execution in prepare_form
- 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 0.8.9.3)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 0.8.9.3
- Fixed in
- 0.8.9.4
- What to do
- If your site has an affected version, update Advanced Custom Fields: Extended to version 0.8.9.4 or newer.
- Official ID
- CVE-2023-5292
- Report title
- Advanced Custom Fields: Extended <= 0.8.9.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode
- First reported
- Sources
- Wordfence, seen
Someone could read or change the data in your site’s database
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 0.8.8.6
- Fixed in
- 0.8.8.7
- What to do
- If your site has an affected version, update Advanced Custom Fields: Extended to version 0.8.8.7 or newer.
- Official ID
- CVE-2021-24865
- Report title
- Advanced Custom Fields: Extended <= 0.8.8.6 - Admin+ SQL Injection
- 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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