LastModified Extension up to 1.38 on Mediawiki cross site scripting

Summaryinfo

A vulnerability was found in LastModified Extension up to 1.38 on Mediawiki and classified as problematic. Affected by this issue is some unknown functionality. The manipulation results in cross site scripting. This vulnerability was named CVE-2025-62693. The attack may be performed from remote. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in LastModified Extension up to 1.38 on Mediawiki. Affected is an unknown code. 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 (XSS or 'Cross-site Scripting') vulnerability in The Wikimedia Foundation Mediawiki - LastModified Extension allows Stored XSS.This issue affects Mediawiki - LastModified Extension: from master before 1.39.

The weakness was presented by SomeRandomDeveloper. The advisory is shared for download at phabricator.wikimedia.org. This vulnerability is traded as CVE-2025-62693 since 10/20/2025. 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 1.39 eliminates this vulnerability.

The vulnerability is also documented in the databases at EUVD (EUVD-2025-35084) and CERT Bund (WID-SEC-2025-2341). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

• Open Source MediaWiki

Productinfo

Name

• LastModified 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

CPE 2.3info

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CPE 2.2info

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Entryinfo

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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