Back to Database
Status published
Medium
CVE-2021-24241
Advanced Custom Field Pro < 5.9.1 - Reflected Cross-Site Scripting (XSS)
Vulnerability Description
The Advanced Custom Fields Pro WordPress plugin before 5.9.1 did not properly escape the generated update URL when outputting it in an attribute, leading to a reflected Cross-Site Scripting issue in the update settings page.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2021-24241
Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Juan David Ordoñez Noriega
References
More from Unknown
View All →CVE-2025-9978
Jeg Elementor Kit < 2.7.0 - Author+ Stored XSS
Unknown
0
CVE-2025-9959
Sandbox escape in smolagents Local Python execution environment via dunder attributes
High
7.6
CVE-2025-9900
Libtiff: libtiff write-what-where
High
8.8
CVE-2025-9784
Undertow: undertow madeyoureset http/2 ddos vulnerability
High
7.5
CVE-2025-9710
Responsive Lightbox & Gallery < 2.5.3 - Unauthenticated Stored-XSS via Comments
Unknown
0
Affected Vendor
Unknown
View all reports →Affected Software
Advanced Custom Fields Pro
Vulnerable Versions:
5.9.1
Timeline
Official Publish:
April 22nd, 2021
Last Modified:
August 3rd, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N