MediaWiki up to 1.33.0 Special:Redirect Username information disclosure

Summaryinfo

A vulnerability identified as problematic has been detected in MediaWiki up to 1.33.0. This impacts an unknown function of the component Special:Redirect. Performing a manipulation results in information disclosure (Username). This vulnerability is known as CVE-2019-16738. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in MediaWiki up to 1.33.0 (Content Management System). It has been classified as problematic. This affects some unknown functionality of the component Special:Redirect. The manipulation with an unknown input leads to a information disclosure vulnerability (Username). CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. The summary by CVE is:

In MediaWiki through 1.33.0, Special:Redirect allows information disclosure of suppressed usernames via a User ID Lookup.

The weakness was published 09/26/2019 (Website). The advisory is shared at seclists.org. This vulnerability is uniquely identified as CVE-2019-16738 since 09/24/2019. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

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

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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
• 1.33.0

License

• open-source

Website

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

CPE 2.3info

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CPE 2.2info

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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