Sanitize up to 6.0.1 cross site scripting

Summaryinfo

A vulnerability was found in Sanitize up to 6.0.1. It has been declared as problematic. Affected is an unknown function. The manipulation results in cross site scripting. This vulnerability is reported as CVE-2023-36823. The attack can be launched remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Sanitize up to 6.0.1. It has been classified as problematic. Affected is some unknown processing. 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:

Sanitize is an allowlist-based HTML and CSS sanitizer. Using carefully crafted input, an attacker may be able to sneak arbitrary HTML and CSS through Sanitize starting with version 3.0.0 and prior to version 6.0.2 when Sanitize is configured to use the built-in "relaxed" config or when using a custom config that allows `style` elements and one or more CSS at-rules. This could result in cross-site scripting or other undesired behavior when the malicious HTML and CSS are rendered in a browser. Sanitize 6.0.2 performs additional escaping of CSS in `style` element content, which fixes this issue. Users who are unable to upgrade can prevent this issue by using a Sanitize config that doesn't allow `style` elements, using a Sanitize config that doesn't allow CSS at-rules, or by manually escaping the character sequence `</` as `<\/` in `style` element content.

The weakness was disclosed 07/06/2023 as GHSA-f5ww-cq3m-q3g7. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2023-36823 since 06/27/2023. 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.

Upgrading to version 6.0.2 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 76ed46e6dc70820f38efe27de8dabd54dddb5220 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.

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Productinfo

Name

• Sanitize

Version

• 6.0.0
• 6.0.1

License

• open-source

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