CVE-2023-27378 — Multiple reflected cross-site scripting (XSS) vulnerabilities exist in undisclos

Multiple reflected cross-site scripting (XSS) vulnerabilities exist in undisclosed pages of the BIG-IP Configuration utility which allow an attacker to run JavaScript in the context of the currently logged-in user. Note: Software versions which have reached End of Technical Suppo

01What is this vulnerability?

Multiple reflected cross-site scripting (XSS) vulnerabilities exist in undisclosed pages of the BIG-IP Configuration utility which allow an attacker to run JavaScript in the context of the currently logged-in user. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

02Affected products

Vendor	Product	Versions
F5	BIG	IP — 17.1.0, 17.0.0, 16.1.0, 15.1.0, 14.1.0, 13.1.0

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-05-03T14:33:49.646Z
• Last modified: 2025-01-29T21:03:14.471Z

09References

• my.f5.com — https://my.f5.com/manage/s/article/K000132726