CVE-2023-36823

HIGH7.1EPSS 0.42%

Sanitize vulnerable to Cross-site Scripting via insufficient neutralization of `style` element content

發布日:2023/7/6修改日:2024/2/16
也稱為:GHSA-f5ww-cq3m-q3g7

描述

### Impact Using carefully crafted input, an attacker may be able to sneak arbitrary HTML and CSS through Sanitize `>= 3.0.0, < 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 XSS (cross-site scripting) or other undesired behavior when the malicious HTML and CSS are rendered in a browser. ### Patches Sanitize `>= 6.0.2` performs additional escaping of CSS in `style` element content, which fixes this issue. ### Workarounds 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. ### Credit This issue was found by @cure53 during an audit of a project that uses Sanitize and was reported by one of that project's maintainers. Thank you!

受影響套件(4)

CVSS 分數

來源版本嚴重程度向量
osvCVSS 3.1HIGH7.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

參考連結(8)