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TI-2024-15288 Aliases CVE-2024-23176GHSA-xxr5-62f3-4fpr

Cross-site scripting in mediawiki MassMessage

Priority MEDIUM 58CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

An issue was discovered in the MassMessage extension in MediaWiki before 1.40.2. For a Special:MassMessage?uselang=x-xss URL, the i18n key massmessage-form-page-help allows XSS.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00235 14th percentileScored 2026-11-07
Fix Fixed MassMessage (MediaWiki): 1.40.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
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
mediawikiMassMessagebefore 1.40.21.40.2Patch availableCNA
  • MassMessage Vendormediawiki Affected before 1.40.2 Fixed in 1.40.2 Patch available CNA

Remediation

  • Fix · CNA MassMessage (MediaWiki) Fixed in 1.40.2

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-23176
  2. 2026-10-03 Alias added: GHSA-xxr5-62f3-4fpr

References

Other 2

  • 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-2020-17515 The Score extension through 0.3.0 for MediaWiki has a remote code execution vulnerability… CVSS 3.1CRITICAL 9.8
  • TI-2024-32110 Backticks can allow the usage of not-allowed SQL functions CVSS 4.0HIGH 8.8
  • TI-2023-03312 Stored XSS leads to privilege escalation in MediaWiki v1.40.0 CVSS 3.1CRITICAL 9.0
  • TI-2026-42112 SQLi in Cargo extension via year range filter CVSS 4.0MEDIUM 6.9
See all 455 →

Sources

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