CVE-2021-22983: F5 BIG-IP Advanced Firewall Manager

Medium severity, CVSS 5.4. EPSS: 0.5% chance of exploitation in the next 30 days.

On BIG-IP AFM version 15.1.x before 15.1.1, 14.1.x before 14.1.3.1, and 13.1.x before 13.1.3.5, authenticated users accessing the Configuration utility for AFM are vulnerable to a cross-site scripting attack if they attempt to access a maliciously-crafted URL. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.

Affected products

• F5 BIG-IP Advanced Firewall Manager: from 13.1.0, before 13.1.3.5 (fixed in 13.1.3.5); from 14.1.0, before 14.1.3.1 (fixed in 14.1.3.1); from 15.1.0, before 15.1.1 (fixed in 15.1.1)

Published 2021-02-12. Last modified 2026-06-17.