Description

WordPress Plugin Advanced Custom Fields (ACF) is prone to a vulnerability that lets attackers upload arbitrary files because the application fails to properly verify user-supplied input. An attacker can exploit this vulnerability to upload arbitrary code and run it in the context of the webserver process. This may facilitate unauthorized access or privilege escalation; other attacks are also possible. WordPress Plugin Advanced Custom Fields (ACF) versions 5.0 - 5.12.2 are vulnerable.

Remediation

Update to plugin version 5.12.3 or latest

References

https://www.pritect.net/blog/advanced-custom-fields-5-12-3-can-allow-unauthenticated-users-to-upload-arbitrary-files

https://www.wordfence.com/threat-intel/vulnerabilities/wordpress-plugins/advanced-custom-fields/advanced-custom-fields-5122-file-upload

https://plugins.svn.wordpress.org/advanced-custom-fields/trunk/readme.txt

Related Vulnerabilities

WordPress Plugin Participants Database Multiple Vulnerabilities (1.7.5.3)

PHP-Fusion Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2008-6850)

WordPress Plugin ShareThis Dashboard for Google Analytics Cross-Site Scripting (2.5.1)

Moodle Improper Control of Generation of Code ('Code Injection') Vulnerability (CVE-2013-3630)

PHPFusion Multiple SQL Injection Vulnerabilities (CVE-2014-8596)

Severity

High

Classification

CVE-2022-2594 CWE-434 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Tags

Missing Update Unauthenticated File Upload