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)
Published · last modified .
CVSS v2 metric
CVSS v2 base score 4.3 (Medium). Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.022 (81.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 81.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.022 · newest: 0.022 · change: 0.000
Affected products
- MediaWiki — versions 1.20, 1.20.1, 1.20.2
Weakness classification (CWE)
References
- security.gentoo.org/glsa/201510-05 (vendor-advisory)
- www.mandriva.com/security/advisories (vendor-advisory)
- www.securityfocus.com/bid/73477 (vdb-entry)
- phabricator.wikimedia.org/T85850 (Exploit)
- www.openwall.com/lists/oss-security/2015/04/07/3 (mailing-list)
- www.openwall.com/lists/oss-security/2015/04/01/1 (mailing-list)
- lists.wikimedia.org/pipermail/mediawiki-announce/2015-March/000175.html (Vendor Advisory, mailing-list, Patch)