MediaWiki before 1.18.5, and 1.19.x before 1.19.2 does not send a restrictive X-Frame-Options HTTP header, which allows remote attackers to conduct clickjacking attacks via an embedded API response in an IFRAME element.
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=686330
http://www.openwall.com/lists/oss-security/2012/08/31/6
http://www.openwall.com/lists/oss-security/2012/08/31/10
https://phabricator.wikimedia.org/T41180
https://lists.wikimedia.org/pipermail/mediawiki-announce/2012-August/000119.html
https://bugzilla.redhat.com/show_bug.cgi?id=853426
Source: Mitre, NVD
Published: 2017-10-19
Updated: 2025-04-20
Base Score: 4.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N
Severity: Medium
Base Score: 6.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
EPSS: 0.00447