Description
The Advanced Custom Fields WordPress plugin before 5.12.3, Advanced Custom Fields Pro WordPress plugin before 5.12.3 allows unauthenticated users to upload files allowed in a default WP configuration (so PHP is not possible) if there is a frontend form available. This vulnerability was introduced in the 5.0 rewrite and did not exist prior to that release.
References (2)
Core 2
Core References
Exploit, Third Party Advisory x_refsource_misc
https://wpscan.com/vulnerability/3fde5336-552c-4861-8b4d-89a16735c0e2
Third Party Advisory x_refsource_misc
https://www.pritect.net/blog/advanced-custom-fields-5-12-3-can-allow-unauthenticated-users-to-upload-arbitrary-files
Scores
CVSS v3
8.8
EPSS
0.0180
EPSS Percentile
82.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Details
CWE
CWE-434
Status
published
Products (1)
advancedcustomfields/advanced_custom_fields
5.0.0 - 5.12.3 (2 CPE variants)
Published
Aug 22, 2022
Tracked Since
Feb 18, 2026