XSS in F5 Big-Ip
CVE-2025-61933
A reflected cross-site scripting (XSS) vulnerability exists in an undisclosed page of BIG-IP APM that allows an attacker to run JavaScript in the context of the targeted logged-out user. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.002 (9.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 9th percentile — 9.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000
Affected products
- F5 Big-Ip — versions 17.5.0, 17.1.0, 16.1.0
- F5 Big-Ip Access Policy Manager
Weakness classification (CWE)
Public proof-of-concept exploits
References
- my.f5.com/manage/s/article/K000156596 (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2025-61933?
- CVE-2025-61933 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-2025-61933?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2025-61933 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.