CVE-2025-13486
Critical
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.
SeverityCritical
CVSS9.8
Exploit probability—
ProductAdvanced Custom Fields: Extended
PublishedDec 3, 2025
First seenDec 3, 2025
Weakness typeCWE-94Code injection
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| hwk-fr Advanced Custom Fields: Extended | 0.9.0.5 ≤ v ≤ 0.9.1.1 | — |
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