CVE-2025-13486
Advanced Custom Fields: Extended 0.9.0.5 - 0.9.1.1 - Unauthenticated Remote Code Execution in prepare_form
criticalImproper Control of Generation of Code ('Code Injection')
9.8
CVSS Score
9.8
CVSS Score
critical
Severity
0.9.2
Patched in
1d
Time to patch
Description
The Advanced Custom Fields: Extended plugin for WordPress is vulnerable to Remote Code Execution in versions 0.9.0.5 through 0.9.1.1 via the prepare_form() function. This is due to the function accepting user input and then passing that through call_user_func_array(). This makes it possible for unauthenticated attackers to execute arbitrary code on the server, which can be leveraged to inject backdoors or create new administrative user accounts.
CVSS Vector Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HAttack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
High
Confidentiality
High
Integrity
High
Availability
Technical Details
Affected versions
>=0.9.0.5 <=0.9.1.1PublishedDecember 2, 2025
Last updatedDecember 3, 2025
Affected pluginacf-extended
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