CVE-2012-4378
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.
Does this matter?
Lower severity and a low EPSS score (1.55%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.0
- 6.1 MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 1.55% probability · 75th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- mediawiki/mediawiki
- Source
- secalert@redhat.com
EPSS 1.5% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.openwall.com/lists/oss-security/2012/08/31/10Mailing List, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2012/08/31/6Mailing List, Patch, Third Party Advisory
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=686330Issue Tracking, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=853417Issue Tracking, Patch, Third Party Advisory
- https://lists.wikimedia.org/pipermail/mediawiki-announce/2012-August/000119.htmlPatch, Vendor Advisory
- https://phabricator.wikimedia.org/T39587Issue Tracking, Patch, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2012/08/31/10Mailing List, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2012/08/31/6Mailing List, Patch, Third Party Advisory
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=686330Issue Tracking, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=853417Issue Tracking, Patch, Third Party Advisory
- https://lists.wikimedia.org/pipermail/mediawiki-announce/2012-August/000119.htmlPatch, Vendor Advisory
- https://phabricator.wikimedia.org/T39587Issue Tracking, Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.