CVE-2012-4378

medium
Published 2017-10-26 · Modified 2026-05-13
CVSS v3
6.1
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS v2
4.3
VIR risk
6.1

Description

Multiple cross-site scripting (XSS) vulnerabilities in MediaWiki before 1.18.5 and 1.19.x before 1.19.2, when unspecified JavaScript gadgets are used, allow remote attackers to inject arbitrary web script or HTML via the userlang parameter to w/index.php.

Predictions

Exploit likelihood
71%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2012-4378

vendor Authored 2026-05-27

Vendor advisory: secalert@redhat.com — https://phabricator.wikimedia.org/T39587

vendor Authored 2026-05-27

Vendor advisory: secalert@redhat.com — https://lists.wikimedia.org/pipermail/mediawiki-announce/2012-August/000119.html

vendor Authored 2026-05-27

Vendor advisory: secalert@redhat.com — https://bugzilla.redhat.com/show_bug.cgi?id=853417

vendor Authored 2026-05-27

Vendor advisory: secalert@redhat.com — http://www.openwall.com/lists/oss-security/2012/08/31/6

vendor Authored 2026-05-27

Vendor advisory: secalert@redhat.com — http://www.openwall.com/lists/oss-security/2012/08/31/10

OS impact

OSVersionStatusFixed in
debian debianbookwormfixed1:1.19.2-1
debian debianbullseyefixed1:1.19.2-1
debian debianforkyfixed1:1.19.2-1
debian debiansidfixed1:1.19.2-1
debian debiantrixiefixed1:1.19.2-1

Application impact

VendorProductVersionsFixed
mediawikimediawiki{"endIncluding":"1.18.4"}
mediawikimediawiki1.19.0
mediawikimediawiki1.19.1

References

CWEs

CWE-79

Verify integrity in audit chain (admin only). AS-IS.