On BIG-IP ASM 15.1.0-15.1.0.5, a cross-site scripting (XSS) vulnerability exists in the BIG-IP ASM Configuration utility response and blocking pages. An authenticated user with administrative privileges can specify a response page with any content, including JavaScript code that will be executed when preview is opened.
Severity
CVSS 3.1
4.8 medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
EPSS
0.5% chance of exploitation in the next 30 days; higher than 44% of CVEs (scores of 2026-10-31)