MediaWiki up to 1.35.4/1.36.2/1.37.0 Image Upload cross site scripting

Summaryinfo

A vulnerability was found in MediaWiki up to 1.35.4/1.36.2/1.37.0 and classified as problematic. Affected is an unknown function of the component Image Upload Handler. The manipulation results in cross site scripting. This vulnerability is cataloged as CVE-2021-44855. The attack may be launched remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in MediaWiki up to 1.35.4/1.36.2/1.37.0 (Content Management System). Affected is an unknown code of the component Image Upload Handler. 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:

An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1. There is Blind Stored XSS via a URL to the Upload Image feature.

The weakness was shared 12/27/2022. The advisory is shared for download at phabricator.wikimedia.org. This vulnerability is traded as CVE-2021-44855 since 12/13/2021. 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 1.35.5, 1.36.3 or 1.37.1 eliminates this vulnerability.

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Productinfo

Type

• Content Management System

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
• 1.35.0
• 1.35.1
• 1.35.2
• 1.35.3
• 1.35.4
• 1.36
• 1.36.0
• 1.36.1
• 1.36.2
• 1.37.0

License

• open-source

Website

• Product: https://www.mediawiki.org/wiki/MediaWiki

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