Wikimedia GlobalBlocking Extension up to 1.39.10/1.41.2/1.42.1 on Mediawiki information disclosure

Summaryinfo

A vulnerability was found in Wikimedia GlobalBlocking Extension up to 1.39.10/1.41.2/1.42.1 on Mediawiki and classified as problematic. The impacted element is an unknown function. Such manipulation leads to information disclosure. This vulnerability is listed as CVE-2025-23073. The attack may be performed from remote. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Wikimedia GlobalBlocking Extension up to 1.39.10/1.41.2/1.42.1 on Mediawiki and classified as problematic. Affected by this issue is an unknown code. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. CVE summarizes:

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation Mediawiki - GlobalBlocking Extension allows Retrieve Embedded Sensitive Data.This issue affects Mediawiki - GlobalBlocking Extension: from 1.39.X before 1.39.11, from 1.41.X before 1.41.3, from 1.42.X before 1.42.2.

The weakness was presented by Dom Walden. The advisory is shared for download at phabricator.wikimedia.org. This vulnerability is handled as CVE-2025-23073 since 01/10/2025. The exploitation is known to be easy. The attack may be launched remotely. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1592.

Upgrading to version 1.39.11, 1.41.3 or 1.42.2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-3105). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• Content Management System

Vendor

• Wikimedia

Name

• GlobalBlocking Extension

Version

• 1.39.0
• 1.39.1
• 1.39.2
• 1.39.3
• 1.39.4
• 1.39.5
• 1.39.6
• 1.39.7
• 1.39.8
• 1.39.9
• 1.39.10
• 1.41.0
• 1.41.1
• 1.41.2
• 1.42.0
• 1.42.1

CPE 2.3info

• 🔍
• 🔍
• 🔍

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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