XSS in MediaWiki
CVE-2016-6334
Cross-site scripting (XSS) vulnerability in the Parser::replaceInternalLinks2 method in MediaWiki before 1.23.15, 1.26.x before 1.26.4, and 1.27.x before 1.27.1 allows remote attackers to inject arbitrary web script or HTML via vectors involving replacement of percent encoding in unclosed internal links.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.011 (64.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 64.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000
Affected products
- MediaWiki — versions 1.26.0, 1.26.1, 1.26.2
Weakness classification (CWE)
References
- www.securityfocus.com/bid/98057 (vdb-entry)
- lists.wikimedia.org/pipermail/mediawiki-announce/2016-August/000195.html (Vendor Advisory, mailing-list, Patch, Mailing List)
- bugzilla.redhat.com/show_bug.cgi (Issue Tracking)
- phabricator.wikimedia.org/T137264 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2016-6334?
- CVE-2016-6334 is a medium-severity vulnerability in MediaWiki, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-04-20.
- How severe is CVE-2016-6334?
- Medium severity. CVSS v3 base score is 6.1 out of 10.