Cross-site scripting in MediaWiki - CVE-2015-2931
Published: April 13, 2015 / Updated: August 9, 2020
Vulnerability identifier: #VU40837
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2015-2931
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: MediaWiki.org
Affected software:
MediaWiki
MediaWiki
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to manipulate data.
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.
How to mitigate CVE-2015-2931
Install update from vendor's website.
Sources
- http://www.mandriva.com/security/advisories?name=MDVSA-2015:200
- http://www.openwall.com/lists/oss-security/2015/04/01/1
- http://www.openwall.com/lists/oss-security/2015/04/07/3
- http://www.securityfocus.com/bid/73477
- https://lists.wikimedia.org/pipermail/mediawiki-announce/2015-March/000175.html
- https://phabricator.wikimedia.org/T85850
- https://security.gentoo.org/glsa/201510-05