CVE-2025-59269

BIG-IP Configuration utility XSS vulnerability

State: Published
Severity: 8.4 High
Published: Oct 15, 2025
Updated: Feb 26, 2026
Reserved: Oct 3, 2025

Description

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 have reached End of Technical Support (EoTS) are not evaluated.

Scores

CVSS	Score	Vector	Source
4.0	8.4 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N	f5
3.1	6.1 Medium	CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N	f5

Weaknesses

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected Products

Product	Versions
BIG-IPF5	17.5.0 to before 17.5.1Affected 17.1.0 to before 17.1.3Affected 16.1.0 to before 16.1.6.1Affected 15.1.0 to before 15.1.10.8Affected

References

https://my.f5.com/manage/s/article/K000151308vendor-advisory

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