9

CVE-2021-23038: f5 big-ip_access_policy_manager Cross-site Scripting

CVSS: 9.0v3.1CriticalModified
Published 14-09-2021Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-23038 is a critical (CVSS 9.0) Cross-site Scripting vulnerability in f5 big-ip_access_policy_manager. EPSS estimates a 0.92% chance of exploitation in the next 30 days, higher than 59.7% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.0/10
010
Critical · v3.1 (NVD)
EPSS score
0.92%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 14-09-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

On version 16.0.x before 16.0.1.2, 15.1.x before 15.1.3.1, 14.1.x before 14.1.4.2, 13.1.x before 13.1.4.1, and all versions of 12.1.x, a stored 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.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

0.92%

Chance of exploitation in the next 30 days

Percentile

60%

Versus all other CVEs

30-day change

0.00 pp

From 0.92% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.92%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

F511 products
  • big-ip_access_policy_manager≥ 12.1.0, ≤ 12.1.6 | ≥ 13.1.0, < 13.1.4.1 | ≥ 14.1.0, < 14.1.4.2 | ≥ 15.1.0, < 15.1.3.1 | ≥ 16.0.0, < 16.0.1.2
  • big-ip_advanced_firewall_manager≥ 12.1.0, ≤ 12.1.6 | ≥ 13.1.0, < 13.1.4.1 | ≥ 14.1.0, < 14.1.4.2 | ≥ 15.1.0, < 15.1.3.1 | ≥ 16.0.0, < 16.0.1.2
  • big-ip_analytics≥ 12.1.0, ≤ 12.1.6 | ≥ 13.1.0, < 13.1.4.1 | ≥ 14.1.0, < 14.1.4.2 | ≥ 15.1.0, < 15.1.3.1 | ≥ 16.0.0, < 16.0.1.2
  • big-ip_application_acceleration_manager≥ 12.1.0, ≤ 12.1.6 | ≥ 13.1.0, < 13.1.4.1 | ≥ 14.1.0, < 14.1.4.2 | ≥ 15.1.0, < 15.1.3.1 | ≥ 16.0.0, < 16.0.1.2
  • big-ip_application_security_manager≥ 12.1.0, ≤ 12.1.6 | ≥ 13.1.0, < 13.1.4.1 | ≥ 14.1.0, < 14.1.4.2 | ≥ 15.1.0, < 15.1.3.1 | ≥ 16.0.0, < 16.0.1.2

1 vendor · 11 products

References

1 links