Symfony Twig Filter cross site scripting

Summaryinfo

A vulnerability labeled as problematic has been found in Symfony. This impacts an unknown function of the component Twig Filter. The manipulation results in cross site scripting. This vulnerability was named CVE-2023-46734. The attack may be performed from remote. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Symfony (the affected version unknown). It has been classified as problematic. Affected is an unknown part of the component Twig Filter. 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:

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Starting in versions 2.0.0, 5.0.0, and 6.0.0 and prior to versions 4.4.51, 5.4.31, and 6.3.8, some Twig filters in CodeExtension use `is_safe=html` but don't actually ensure their input is safe. As of versions 4.4.51, 5.4.31, and 6.3.8, Symfony now escapes the output of the affected filters.

The weakness was presented 11/10/2023 as GHSA-q847-2q57-wmr3. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2023-46734 since 10/25/2023. 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.

The vulnerability scanner Nessus provides a plugin with the ID 216425 (Ubuntu 20.04 LTS / 22.04 LTS / 24.04 LTS : Symfony vulnerabilities (USN-7272-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability. Applying the patch 5d095d5feb1322b16450284a04d6bb48d1198f54 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.

The vulnerability is also documented in the vulnerability database at Tenable (216425). VulDB is the best source for vulnerability data and more expert information about this specific topic.

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• Symfony

License

• open-source

Website

• Product: https://github.com/symfony/symfony/

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

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