6.9

CVE-2026-33159: craftcms cms

CVSS: 6.9v4.0MediumAnalyzed
Published 24-03-2026Last modified 24-03-2026
Open JSON

Vulnerability summary

CVE-2026-33159 is a medium (CVSS 6.9) vulnerability in craftcms cms. EPSS estimates a 0.45% chance of exploitation in the next 30 days, higher than 38.1% of scored vulnerabilities.

Overall risk
28/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.9/10
010
Medium · v4.0 (CVE.org)
EPSS score
0.45%
0%100%
Low · +0.14 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 24-03-2026
    PublishedVulnerability first disclosed.
  2. 24-03-2026
    Last modifiedVulnerability information updated.

Description

Craft CMS is a content management system (CMS). From version 4.0.0-RC1 to before version 4.17.8 and from version 5.0.0-RC1 to before version 5.9.14, guest users can access Config Sync updater index, obtain signed data, and execute state-changing Config Sync actions (regenerate-yaml, apply-yaml-changes) without authentication. This issue has been patched in versions 4.17.8 and 5.9.14.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.45%

Chance of exploitation in the next 30 days

Percentile

38%

Versus all other CVEs

30-day change

+0.14 pp

From 0.31% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.45%

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

Craftcms2 products
  • cms≥ 4.0.0-RC1, < 4.17.8 | ≥ 5.0.0-RC1, < 5.9.14
  • craft_cmsEOL> 4.0.0, < 4.17.8 | > 5.0.0, < 5.9.14 | 4.0.0 | 4.0.0:rc1 | 4.0.0:rc2 | 4.0.0:rc3 | 5.0.0 | 5.0.0:rc1

1 vendor · 2 products

References

4 links