MediaWiki before 1.19.24, 1.2x before 1.23.9, and 1.24.x before 1.24.2, when using HHVM, allows remote attackers to cause a denial of…

Description

MediaWiki before 1.19.24, 1.2x before 1.23.9, and 1.24.x before 1.24.2, when using HHVM, allows remote attackers to cause a denial of service (CPU and memory consumption) via a large number of nested entity references in an (1) SVG file or (2) XMP metadata in a PDF file, aka a "billion laughs attack," a different vulnerability than CVE-2015-2937.

Scores

EPSS (exploitation in 30 days)

2.8% · top 13% of all CVEs (4 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.1.

Weakness

• n/a
• CWE-399 (opens in a new tab)All about CWE-399 and its CVEs

Affected products

• n/a

  • affected n/a

References (6)

• GLSA-201510-05 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
• 73477 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• [oss-security] 20150407 Re: CVE request: MediaWiki 1.24.2/1.23.9/1.19.24 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• [oss-security] 20150331 CVE request: MediaWiki 1.24.2/1.23.9/1.19.24 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• [MediaWiki-announce] 20150331 MediaWiki Security and Maintenance Releases: 1.19.24, 1.23.9, and 1.24.2 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• https://phabricator.wikimedia.org/T85848 (opens in a new tab)x_refsource_CONFIRMx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2015-2942](https://trackcve.app/badge/CVE-2015-2942.svg)](https://trackcve.app/cve/CVE-2015-2942)

Record last updated 6 Aug 2024, 05:32 UTC.