cve-2023-36823
Vulnerability from cvelistv5
Published
2023-07-06 15:06
Modified
2025-02-13 16:56
Severity ?
7.1 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
Summary
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.
References
security-advisories@github.comhttps://github.com/rgrove/sanitize/commit/76ed46e6dc70820f38efe27de8dabd54dddb5220Patch
security-advisories@github.comhttps://github.com/rgrove/sanitize/releases/tag/v6.0.2Release Notes
security-advisories@github.comhttps://github.com/rgrove/sanitize/security/advisories/GHSA-f5ww-cq3m-q3g7Vendor Advisory
security-advisories@github.comhttps://lists.debian.org/debian-lts-announce/2023/11/msg00008.htmlMailing List
af854a3a-2127-422b-91ae-364da2661108https://github.com/rgrove/sanitize/commit/76ed46e6dc70820f38efe27de8dabd54dddb5220Patch
af854a3a-2127-422b-91ae-364da2661108https://github.com/rgrove/sanitize/releases/tag/v6.0.2Release Notes
af854a3a-2127-422b-91ae-364da2661108https://github.com/rgrove/sanitize/security/advisories/GHSA-f5ww-cq3m-q3g7Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2023/11/msg00008.htmlMailing List
Impacted products
Vendor Product Version
rgrove sanitize Version: >= 3.0.0, < 6.0.2
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