CVE-2021-23041

MEDIUM
6.1
CVSS Score
Published: September 14, 2021 at 01:31 PM UTC
Updated: June 17, 2026 at 03:38 AM UTC
12 products affected across 1 vendorBig IP Access Policy ManagerBig IP Application Security ManagerBig IP Advanced Firewall Manager

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Severity
MEDIUM6.1
Exploit prediction
EPSS 0.6%

Description

On BIG-IP version 16.0.x before 16.0.1.2, 15.1.x before 15.1.3, 14.1.x before 14.1.4.2, 13.1.x before 13.1.4.1, and all versions of 12.1.x, 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 current logged-in user. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

12.1.0 ≤ v ≤ 12.1.613.1.0 ≤ v < 13.1.4.114.1.0 ≤ v < 14.1.4.215.1.0 ≤ v < 15.1.316.0.0 ≤ v < 16.0.1.2
Affected range stops below 13.1.4.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.1.4.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.1.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 16.0.1.2, so it looks safe — our inference, not a vendor statement
12.1.0 ≤ v ≤ 12.1.613.1.0 ≤ v < 13.1.4.114.1.0 ≤ v < 14.1.4.215.1.0 ≤ v < 15.1.316.0.0 ≤ v < 16.0.1.2
Affected range stops below 13.1.4.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.1.4.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.1.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 16.0.1.2, so it looks safe — our inference, not a vendor statement
12.1.0 ≤ v ≤ 12.1.613.1.0 ≤ v < 13.1.4.114.1.0 ≤ v < 14.1.4.215.1.0 ≤ v < 15.1.316.0.0 ≤ v < 16.0.1.2
Affected range stops below 13.1.4.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.1.4.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.1.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 16.0.1.2, so it looks safe — our inference, not a vendor statement
12.1.0 ≤ v ≤ 12.1.613.1.0 ≤ v < 13.1.4.114.1.0 ≤ v < 14.1.4.215.1.0 ≤ v < 15.1.316.0.0 ≤ v < 16.0.1.2
Affected range stops below 13.1.4.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.1.4.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.1.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 16.0.1.2, so it looks safe — our inference, not a vendor statement
12.1.0 ≤ v ≤ 12.1.613.1.0 ≤ v < 13.1.4.114.1.0 ≤ v < 14.1.4.215.1.0 ≤ v < 15.1.316.0.0 ≤ v < 16.0.1.2
Affected range stops below 13.1.4.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.1.4.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.1.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 16.0.1.2, so it looks safe — our inference, not a vendor statement
12.1.0 ≤ v ≤ 12.1.613.1.0 ≤ v < 13.1.4.114.1.0 ≤ v < 14.1.4.215.1.0 ≤ v < 15.1.316.0.0 ≤ v < 16.0.1.2
Affected range stops below 13.1.4.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.1.4.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.1.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 16.0.1.2, so it looks safe — our inference, not a vendor statement
12.1.0 ≤ v ≤ 12.1.613.1.0 ≤ v < 13.1.4.114.1.0 ≤ v < 14.1.4.215.1.0 ≤ v < 15.1.316.0.0 ≤ v < 16.0.1.2
Affected range stops below 13.1.4.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.1.4.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.1.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 16.0.1.2, so it looks safe — our inference, not a vendor statement
12.1.0 ≤ v ≤ 12.1.613.1.0 ≤ v < 13.1.4.114.1.0 ≤ v < 14.1.4.215.1.0 ≤ v < 15.1.316.0.0 ≤ v < 16.0.1.2
Affected range stops below 13.1.4.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.1.4.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.1.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 16.0.1.2, so it looks safe — our inference, not a vendor statement
12.1.0 ≤ v ≤ 12.1.613.1.0 ≤ v < 13.1.4.114.1.0 ≤ v < 14.1.4.215.1.0 ≤ v < 15.1.316.0.0 ≤ v < 16.0.1.2
Affected range stops below 13.1.4.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.1.4.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.1.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 16.0.1.2, so it looks safe — our inference, not a vendor statement
12.1.0 ≤ v ≤ 12.1.613.1.0 ≤ v < 13.1.4.114.1.0 ≤ v < 14.1.4.215.1.0 ≤ v < 15.1.316.0.0 ≤ v < 16.0.1.2
Affected range stops below 13.1.4.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.1.4.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.1.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 16.0.1.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (1)

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-79

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