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TI-2023-18489 Aliases CVE-2023-36674GHSA-5998-5c6q-8v55

An issue was discovered in MediaWiki before 1.35.11, 1.36.x through 1.38.x before 1.38.7…

Priority LOW 31CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · Low · None
Fix status
Will not fix Red Hat: no fix planned

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.

Summary

An issue was discovered in MediaWiki before 1.35.11, 1.36.x through 1.38.x before 1.38.7, 1.39.x before 1.39.4, and 1.40.x before 1.40.1. It is possible to bypass the Bad image list (aka badFile) by using the thumb parameter (aka Manualthumb) of the File syntax.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00737 54th percentileScored 2026-11-07
Fix Will not fix Red Hat: no fix planned

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*before 1.35.11; 1.36.0 to before 1.38.7; 1.39.0 to before 1.39.4Vulnerablemediawiki
cpe:2.3:a:mediawiki:mediawiki:1.40.0:*:*:*:*:*:*:*1.40.0Vulnerablemediawiki
  • cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:* Versions before 1.35.11; 1.36.0 to before 1.38.7; 1.39.0 to before 1.39.4 Vulnerable ·mediawiki
  • cpe:2.3:a:mediawiki:mediawiki:1.40.0:*:*:*:*:*:*:* Versions 1.40.0 Vulnerable ·mediawiki

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat OpenShift Container Platform 3.11AffectedNo fix planned: Out of support scope

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-36674
  2. 2026-10-03 Alias added: GHSA-5998-5c6q-8v55

References

Patch 1

Advisory 3

  • TI-2023-18933 An issue was discovered in the CheckUser extension for MediaWiki through 1.39.3. CVSS 3.1CRITICAL 9.8
  • TI-2023-13576 An issue was discovered in MediaWiki before 1.35.10, 1.36.x through 1.38.x before 1.38.6… CVSS 3.1CRITICAL 9.8
  • TI-2023-03312 Stored XSS leads to privilege escalation in MediaWiki v1.40.0 CVSS 3.1CRITICAL 9.0
  • TI-2026-42109 Cross-site request forgery in Wikimedia Foundation Mediawiki - RedirectManager Extension CVSS 4.0MEDIUM 6.9
  • TI-2024-22822 An issue was discovered in includes/CommentFormatter/CommentParser.php in MediaWiki… CVSS 3.1HIGH 7.4
  • TI-2023-18935 An issue was discovered in the ProofreadPage (aka Proofread Page) extension for MediaWiki… CVSS 3.1MEDIUM 5.3
See all 416 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences