CVE-2025-13486criticalobserved exploitationCWE-94

CVE-2025-13486: critical vulnerability in hwk-fr Advanced Custom Fields: Extended

Advanced Custom Fields: Extended 0.9.0.5 - 0.9.1.1 - Unauthenticated Remote Code Execution in prepare_form

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97Vexday Risk Score

Patch now. It exploitation observed by VulnCheck and has a working public exploit.

ssvc Actcvss 9.8epss 69%
from disclosure to weapon1 day
Published on NVDDec 3
1st PoC+1d
metasploitDec 2
VulnCheckDec 2
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
hwk-fr · Advanced Custom Fields: Extended
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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