Medium severity · published Apr 20, 2017
CVE-2016-6333
Cross-site scripting (XSS) vulnerability in the CSS user subpage preview feature 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%
EPSS
No
On KEV
Description
Cross-site scripting (XSS) vulnerability in the CSS user subpage preview feature 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 the edit box in Special:MyPage/common.css.
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)1.0% · higher than 63% 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-2016-6333
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-6333
www.securityfocus.com
http://www.securityfocus.com/bid/98053
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/T133147
More from Mediawiki
9.8
CVE-2026-58025
Remote Code Execution via Unsafe Deserialization in LogItem Import
9.8
CVE-2025-67484
Action API xslt option allows JavaScript execution by administrators who are not interface administrators
9.8
CVE-2024-34502
An issue was discovered in WikibaseLexeme in MediaWiki before 1.39.6, 1.40.x before 1.40.2, and 1.41.x before 1.41.1
9.8
CVE-2023-37303
An issue was discovered in the CheckUser extension for MediaWiki through 1.39.3
9.8
CVE-2023-29141
An issue was discovered in MediaWiki before 1.35.10, 1.36.x through 1.38.x before 1.38.6, and 1.39.x before 1.39.3