Wikimedia Wikidata Extension up to 1.43 on Mediawiki getDimensionsString cross site scripting

Summaryinfo

A vulnerability was found in Wikimedia Wikidata Extension up to 1.43 on Mediawiki. It has been classified as problematic. Affected by this issue is the function ImageHandler::getDimensionsString. The manipulation leads to cross site scripting. This vulnerability is uniquely identified as CVE-2025-32071. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in Wikimedia Wikidata Extension up to 1.43 on Mediawiki and classified as problematic. This issue affects the function ImageHandler::getDimensionsString. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to 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. Impacted is integrity. The summary by CVE is:

Improper Input Validation vulnerability in The Wikimedia Foundation Mediawiki - Wikidata Extension allows Cross-Site Scripting (XSS) from widthheight message via ImageHandler::getDimensionsString()This issue affects Mediawiki - Wikidata Extension: from 1.39 through 1.43.

The weakness was disclosed by Lucas_Werkmeister_WMDE. It is possible to read the advisory at phabricator.wikimedia.org. The identification of this vulnerability is CVE-2025-32071 since 04/03/2025. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-10824). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Content Management System

Vendor

• Wikimedia

Name

• Wikidata Extension

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

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

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Entryinfo

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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