PHPOffice PhpSpreadsheet up to 1.29.6/2.1.5/2.3.4/3.6.x HTML Link HTML injection

Summaryinfo

A vulnerability was found in PHPOffice PhpSpreadsheet up to 1.29.6/2.1.5/2.3.4/3.6.x. It has been classified as problematic. Affected by this vulnerability is an unknown functionality of the component HTML Link Handler. Performing a manipulation results in HTML injection. This vulnerability is cataloged as CVE-2024-56412. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as problematic has been found in PHPOffice PhpSpreadsheet up to 1.29.6/2.1.5/2.3.4/3.6.x. This affects an unknown code block of the component HTML Link Handler. The manipulation with an unknown input leads to a html injection 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. The summary by CVE is:

PhpSpreadsheet is a PHP library for reading and writing spreadsheet files. Versions prior to 3.7.0, 2.3.5, 2.1.6, and 1.29.7 are vulnerable to bypass of the cross-site scripting sanitizer using the javascript protocol and special characters. An attacker can use special characters, so that the library processes the javascript protocol with special characters and generates an HTML link. Versions 3.7.0, 2.3.5, 2.1.6, and 1.29.7 contain a patch for the issue.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2024-56412 since 12/23/2024. The exploitability is told to be easy. It is possible to initiate the attack remotely. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

Upgrading to version 1.29.7, 2.1.6, 2.3.5 or 3.7.0 eliminates this vulnerability. Applying the patch 45052f88e04c735d56457a8ffcdc40b2635a028e is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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

Productinfo

Vendor

• PHPOffice

Name

• PhpSpreadsheet

Version

• 1.29.0
• 1.29.1
• 1.29.2
• 1.29.3
• 1.29.4
• 1.29.5
• 1.29.6
• 2.1.0
• 2.1.1
• 2.1.2
• 2.1.3
• 2.1.4
• 2.1.5
• 2.3.0
• 2.3.1
• 2.3.2
• 2.3.3
• 2.3.4
• 3.0
• 3.1
• 3.2
• 3.3
• 3.4
• 3.5
• 3.6

License

• open-source

Website

• Product: https://github.com/PHPOffice/PhpSpreadsheet/

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

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