CSRF in MediaWiki

CVE-2014-5241

The JSONP endpoint in includes/api/ApiFormatJson.php in MediaWiki before 1.19.18, 1.20.x through 1.22.x before 1.22.9, and 1.23.x before 1.23.2 accepts certain long callback values and does not restrict the initial bytes of a JSONP response, which allows remote attackers to conduct cross-site request forgery (CSRF) attacks, and obtain sensitive information, via a crafted OBJECT element with SWF content consistent with a restricted character set.

Vulnerability class: CSRF (Cross-Site Request Forgery)

EPSS: 0.008 (54.1th percentile) — read the EPSS interpretation.

Affected products

  • Mediawiki — versions 1.19, 1.19.0, 1.19.1
  • N/a — versions n/a

Weakness classification (CWE)

References