CVE-2025-24320: 
F5 BIG-IP Advanced Firewall Manager vulnerability analysis and mitigation

A stored cross-site scripting (XSS) vulnerability (CVE-2025-24320) exists in an undisclosed page of the BIG-IP Configuration utility that allows an attacker to run JavaScript in the context of the currently logged-in user. This vulnerability is a result of an incomplete fix for CVE-2024-31156. The vulnerability was disclosed on February 5, 2025, and affects F5's BIG-IP Configuration utility (NVD, CVE).

The vulnerability has been assigned a CVSS v4.0 base score of 5.1 (MEDIUM) with vector string CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N, and a CVSS v3.1 base score of 8.0 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H. The vulnerability is classified as CWE-79 (Improper Neutralization of Input During Web Page Generation - Cross-site Scripting) (NVD).

When exploited, this vulnerability allows attackers to execute JavaScript code in the context of the currently logged-in user's session. This could potentially lead to unauthorized access, data theft, or manipulation of the BIG-IP Configuration utility settings (NVD).

F5 has released an advisory with mitigation information available at K000140578. Users should refer to the official F5 advisory for detailed mitigation steps (F5 Advisory).