CVE-2024-34500

An issue was discovered in the UnlinkedWikibase extension in MediaWiki before 1.39.6, 1.40.x before 1.40.2, and 1.41.x before 1.41.1. XSS can occur through an interface message. Error messages (in the $err var) are not escaped before being passed to Html::rawElement() in the getError() function in the Hooks class.

CVSS v3 6.1 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://gerrit.wikimedia.org/r/c/mediawiki/extensions/UnlinkedWikibase/+/1002175	Patch Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FU2FGUXXK6TMV6R52VRECLC6XCSQQISY/	Third Party Advisory
https://phabricator.wikimedia.org/T357203	Issue Tracking Vendor Advisory
https://gerrit.wikimedia.org/r/c/mediawiki/extensions/UnlinkedWikibase/+/1002175	Patch Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FU2FGUXXK6TMV6R52VRECLC6XCSQQISY/	Third Party Advisory
https://lists.fedoraproject.org/archives/list/[email protected]/message/FU2FGUXXK6TMV6R52VRECLC6XCSQQISY/
https://phabricator.wikimedia.org/T357203	Issue Tracking Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:mediawiki:mediawiki::::::::
	cpe:2.3:a:mediawiki:mediawiki::::::::
	cpe:2.3:a:mediawiki:mediawiki::::::::

Configuration 2 (hide)

cpe:2.3:o:fedoraproject:fedora:40:*:*:*:*:*:*:*

History

04 Nov 2025, 18:16

Type	Values Removed	Values Added
References		() https://lists.fedoraproject.org/archives/list/[email protected]/message/FU2FGUXXK6TMV6R52VRECLC6XCSQQISY/ -

Information

Published : 2024-05-05 19:15

Updated : 2025-11-04 18:16

NVD link : CVE-2024-34500

Mitre link : CVE-2024-34500

CVE.ORG link : CVE-2024-34500

JSON object : View

Products Affected

mediawiki

mediawiki

fedoraproject

fedora

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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