Wikimedia Foundation MediaWiki up to 1.46.0 Cargo cross site scripting

Summaryinfo

A vulnerability, which was classified as problematic, was found in Wikimedia Foundation MediaWiki up to 1.46.0. Affected by this vulnerability is an unknown functionality of the component Cargo. The manipulation results in cross site scripting. This vulnerability is known as CVE-2026-103049. It is possible to launch the attack remotely. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in Wikimedia Foundation MediaWiki up to 1.46.0. Affected is some unknown functionality of the component Cargo. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. CVE summarizes:

Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in The Wikimedia Foundation Mediawiki - Cargo extension allows Reflected XSS. This issue affects Mediawiki - Cargo extension: before 1.46.1.

The advisory is shared for download at phabricator.wikimedia.org. This vulnerability is traded as CVE-2026-103049 since 09/30/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007.

Upgrading to version 1.46.1 eliminates this vulnerability.

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Productinfo

Type

• Content Management System

Vendor

• Wikimedia Foundation

Name

• MediaWiki

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7
• 1.8
• 1.9
• 1.10
• 1.11
• 1.12
• 1.13
• 1.14
• 1.15
• 1.16
• 1.17
• 1.18
• 1.19
• 1.20
• 1.21
• 1.22
• 1.23
• 1.24
• 1.25
• 1.26
• 1.27
• 1.28
• 1.29
• 1.30
• 1.31
• 1.32
• 1.33
• 1.34
• 1.35
• 1.36
• 1.37
• 1.38
• 1.39
• 1.40
• 1.41
• 1.42
• 1.43
• 1.44
• 1.45
• 1.46.0

License

• open-source

CPE 2.3info

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CPE 2.2info

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