CVE-2020-27726

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-12-24 · updated 2026-06-17
Weakness: CWE-79

Description

In versions 16.0.0-16.0.0.1, 15.1.0-15.1.0.5, 14.1.0-14.1.3, 13.1.0-13.1.3.4, and 12.1.0-12.1.5.2, a reflected cross-site scripting (XSS) vulnerability exists in the resource information page for authenticated users when a full webtop is configured on the BIG-IP APM system.

Affected products

F5 BIG-IP APM: from 12.1.0 through 12.1.5; from 13.1.0 before 13.1.3.5; from 14.1.0 before 14.1.3.1; from 15.0.0 before 15.1.1; from 16.0.0 before 16.0.1 — fixed in 13.1.3.5, 14.1.3.1, 15.1.1, 16.0.1

How to fix

Upgrade to a fixed version: F5 BIG-IP APM 13.1.3.5, 14.1.3.1, 15.1.1, 16.0.1. Check the vendor advisory for mitigations.

References

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