XSS in F5 Big-ip
CVE-2025-59269
A stored cross-site scripting (XSS) vulnerability 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. Note: Software versions which…
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.003 (16.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N.
Affected products
- F5 Big-ip — versions 17.5.0, 17.1.0, 16.1.0
- F5 Big-ip_access_policy_manager
- F5 Big-ip_advanced_firewall_manager
- F5 Big-ip_advanced_web_application_firewall
- F5 Big-ip_analytics
- F5 Big-ip_application_acceleration_manager
- F5 Big-ip_application_security_manager
- F5 Big-ip_application_visibility_and_reporting
- F5 Big-ip_automation_toolchain
- F5 Big-ip_carrier-grade_nat
Weakness classification (CWE)
Public proof-of-concept exploits
References
- f5sirt@f5.com (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2025-59269?
- CVE-2025-59269 is a medium-severity vulnerability in F5 Big-ip, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2025-10-15.
- How severe is CVE-2025-59269?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2025-59269 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.