CVE-2021-23027

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-09-14 · updated 2026-06-17
Weakness: CWE-79

Description

On version 16.0.x before 16.0.1.2, 15.1.x before 15.1.3.1, and 14.1.x before 14.1.4.3, a DOM based cross-site scripting (XSS) vulnerability exists in an undisclosed page of the BIG-IP Configuration utility that allows an attacker to execute JavaScript in the context of the currently logged-in user. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Affected products

F5 BIG-IP APM: from 14.1.0 through 14.1.4; from 15.1.0 through 15.1.3; from 16.0.0 through 16.0.1.1
BIG-IP: from 14.1.0 through 14.1.4; from 15.1.0 through 15.1.3; from 16.0.0 through 16.0.1.1
F5 Big-Ip Advanced Web Application Firewall: from 14.1.0 through 14.1.4; from 15.1.0 through 15.1.3; from 16.0.0 through 16.0.1.1
F5 Big-Ip Analytics: from 14.1.0 through 14.1.4; from 15.1.0 through 15.1.3; from 16.0.0 through 16.0.1.1
F5 Networks, Inc. BIG-IP (AAM): from 14.1.0 through 14.1.4; from 15.1.0 through 15.1.3; from 16.0.0 through 16.0.1.1
BIG-IP ASM: from 14.1.0 through 14.1.4; from 15.1.0 through 15.1.3; from 16.0.0 through 16.0.1.1
F5 Big-Ip Ddos Hybrid Defender: from 14.1.0 through 14.1.4; from 15.1.0 through 15.1.3; from 16.0.0 through 16.0.1.1
F5 BIG-IP DNS: from 14.1.0 through 14.1.4; from 15.1.0 through 15.1.3; from 16.0.0 through 16.0.1.1
F5 Big-Ip Fraud Protection Service: from 14.1.0 through 14.1.4; from 15.1.0 through 15.1.3; from 16.0.0 through 16.0.1.1
F5 Big-Ip Global Traffic Manager: from 14.1.0 through 14.1.4; from 15.1.0 through 15.1.3; from 16.0.0 through 16.0.1.1
F5 Big-Ip Link Controller: from 14.1.0 through 14.1.4; from 15.1.0 through 15.1.3; from 16.0.0 through 16.0.1.1
F5 BIG-IP (LTM): from 14.1.0 through 14.1.4; from 15.1.0 through 15.1.3; from 16.0.0 through 16.0.1.1
F5 Networks, Inc. BIG-IP (PEM): from 14.1.0 through 14.1.4; from 15.1.0 through 15.1.3; from 16.0.0 through 16.0.1.1
F5 Big-Ip Ssl Orchestrator: from 14.1.0 through 14.1.4; from 15.1.0 through 15.1.3; from 16.0.0 through 16.0.1.1

References

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