CVE-2016-6334 Information

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

Reference

http://www.securityfocus.com/bid/98057 https://bugzilla.redhat.com/show_bug.cgi?id=1369613 https://lists.wikimedia.org/pipermail/mediawiki-announce/2016-August/000195.html https://phabricator.wikimedia.org/T137264

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

CHANGED

Integrity Impact

LOW

Availability Impact

LOW

Base Score

NONE

Base Severity

6.1