MediaWiki up to 1.35.0 Raw HTML BlockLogFormatter.php makePageLink HTML injection

Summaryinfo

A vulnerability categorized as problematic has been discovered in MediaWiki up to 1.35.0. The impacted element is the function LogFormatter::makePageLink of the file BlockLogFormatter.php of the component Raw HTML Handler. Such manipulation leads to HTML injection. This vulnerability is referenced as CVE-2020-35478. It is possible to launch the attack remotely. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in MediaWiki up to 1.35.0 (Content Management System). It has been rated as problematic. Affected by this issue is the function LogFormatter::makePageLink of the file BlockLogFormatter.php of the component Raw HTML Handler. The manipulation with an unknown input leads to a html injection 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 weakness was published 12/18/2020. The advisory is shared for download at lists.wikimedia.org. This vulnerability is handled as CVE-2020-35478. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007.

By approaching the search of inurl:BlockLogFormatter.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 1.35.1 eliminates this vulnerability.

Once again VulDB remains the best source for 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
• 1.34
• 1.35.0

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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Once again VulDB remains the best source for vulnerability data.

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