5.4

CVE-2021-24366: Admin Columns Free < 4.3 & Pro < 5.5.1 - Admin+ Stored XSS in Label

Modified
Published 21-06-2021Last modified 05-05-2025

Vulnerability summary

CVE-2021-24366 is a medium (CVSS 5.4) Cross-site Scripting vulnerability in admincolumns admin_columns. EPSS estimates a 1.00% chance of exploitation in the next 30 days, higher than 62.3% of scored vulnerabilities. 2 public exploits are recorded.

Overall risk
32/100
0100
Medium · default modelHow is this calculated?
CVSS score
5.4/10
010
Medium · v3.1 (CVE.org)
EPSS score
1.00%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits2reference

Timeline

  1. 21-06-2021
    PublishedVulnerability first disclosed.
  2. 05-05-2025
    Last modifiedVulnerability information updated.

Description

The Admin Columns WordPress plugin before 4.3 and Admin Columns Pro WordPress plugin before 5.5.1 do not sanitise and escape its Label settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

1.00%

Chance of exploitation in the next 30 days

Percentile

62%

Versus all other CVEs

30-day change

No change 0.00 pp

From 1.00% on 22-09-2026

22-09-202622-10-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

2 found
  • referenceUnverified

    Exploit Reference (wpscan.com)

    Maturity: unknown

  • referenceUnverified

    Exploit Reference (whitesourcesoftware.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Unknown2 products
Wordpress2 products
  • admin-columns-pro< 5.5.1
  • codepress-admin-columns≤ 4.2 (fixed in 4.3)
Admincolumns1 product

3 vendors · 5 products

References

4 links