MEDIUM6.8
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.
CVSS 2.0MEDIUM 6.8
CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:PReferences
- http://advisories.mageia.org/MGASA-2014-0309.html
- http://openwall.com/lists/oss-security/2014/08/14/5
- http://secunia.com/advisories/59738
- http://www.debian.org/security/2014/dsa-3011
- http://www.mandriva.com/security/advisories?name=MDVSA-2014:153
- https://bugzilla.wikimedia.org/show_bug.cgi?id=68187
- https://lists.wikimedia.org/pipermail/mediawiki-announce/2014-July/000157.html
- http://advisories.mageia.org/MGASA-2014-0309.html
- http://openwall.com/lists/oss-security/2014/08/14/5
- http://secunia.com/advisories/59738
- http://www.debian.org/security/2014/dsa-3011
- http://www.mandriva.com/security/advisories?name=MDVSA-2014:153
- https://bugzilla.wikimedia.org/show_bug.cgi?id=68187
- https://lists.wikimedia.org/pipermail/mediawiki-announce/2014-July/000157.html