XSS in MediaWiki

CVE-2015-2931

Incomplete blacklist vulnerability in includes/upload/UploadBase.php in MediaWiki before 1.19.24, 1.2x before 1.23.9, and 1.24.x before 1.24.2 allows remote attackers to inject arbitrary web script or HTML via an application/xml MIME type for a nested SVG with a data: URI.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.022 (80.7th percentile) — read the EPSS interpretation.

Affected products

  • Mediawiki — versions 1.20, 1.20.1, 1.20.2
  • N/a — versions n/a

Weakness classification (CWE)

References