Medium severity · published Apr 20, 2017
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…
6.1
CVSS
1.1%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 66% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ME
Mediawiki · Mediawiki
through 1.23.14; 1.26.0; 1.26.1; 1.26.2; 1.26.3; 1.26.4; +1 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-6334
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-6334
www.securityfocus.com
http://www.securityfocus.com/bid/98057
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1369613
Mailing List
https://lists.wikimedia.org/pipermail/mediawiki-announce/2016-August/000195.html
Patch
https://phabricator.wikimedia.org/T137264
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