Critical severity · published Dec 3, 2025
CVE-2025-13486
Advanced Custom Fields: Extended 0.9.0.5 - 0.9.1.1 - Unauthenticated Remote Code Execution in prepare_form
9.8
CVSS
67.6%
EPSS
No
On KEV
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
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)67.6% · higher than 99% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AC
Advanced Custom Fields: Extended · hwk-fr
0.9.0.5 through 0.9.1.1 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-13486
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-13486
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/changeset/3400134/acf-extended
www.wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/c508cb73-53e6-4ebe-b3d0-285908b722c9?source=cve
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