CVSS: 7.1EPSS: 0%CPEs: 2EXPL: 0CVE-2023-36823 – Sanitize vulnerable to Cross-site Scripting via insufficient neutralization of `style` element content
https://notcve.org/view.php?id=CVE-2023-36823
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. • https://github.com/rgrove/sanitize/commit/76ed46e6dc70820f38efe27de8dabd54dddb5220 https://github.com/rgrove/sanitize/releases/tag/v6.0.2 https://github.com/rgrove/sanitize/security/advisories/GHSA-f5ww-cq3m-q3g7 https://lists.debian.org/debian-lts-announce/2023/11/msg00008.html • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •
CVSS: 6.1EPSS: 0%CPEs: 1EXPL: 0CVE-2023-23627 – Sanitize vulnerable to Cross-site Scripting via Improper neutralization of `noscript` element
https://notcve.org/view.php?id=CVE-2023-23627
Sanitize is an allowlist-based HTML and CSS sanitizer. Versions 5.0.0 and later, prior to 6.0.1, are vulnerable to Cross-site Scripting. When Sanitize is configured with a custom allowlist that allows `noscript` elements, attackers are able to include arbitrary HTML, resulting in XSS (cross-site scripting) or other undesired behavior when that HTML is rendered in a browser. The default configurations do not allow `noscript` elements and are not vulnerable. This issue only affects users who are using a custom config that adds `noscript` to the element allowlist. • https://github.com/rgrove/sanitize/security/advisories/GHSA-fw3g-2h3j-qmm7 • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •
CVSS: 7.3EPSS: 0%CPEs: 1EXPL: 0CVE-2020-4054 – Cross-site Scripting in Sanitize
https://notcve.org/view.php?id=CVE-2020-4054
In Sanitize (RubyGem sanitize) greater than or equal to 3.0.0 and less than 5.2.1, there is a cross-site scripting vulnerability. When HTML is sanitized using Sanitize's "relaxed" config, or a custom config that allows certain elements, some content in a math or svg element may not be sanitized correctly even if math and svg are not in the allowlist. You are likely to be vulnerable to this issue if you use Sanitize's relaxed config or a custom config that allows one or more of the following HTML elements: iframe, math, noembed, noframes, noscript, plaintext, script, style, svg, xmp. Using carefully crafted input, an attacker may be able to sneak arbitrary HTML through Sanitize, potentially resulting in XSS (cross-site scripting) or other undesired behavior when that HTML is rendered in a browser. This has been fixed in 5.2.1. • https://github.com/rgrove/sanitize/commit/a11498de9e283cd457b35ee252983662f7452aa9 https://github.com/rgrove/sanitize/releases/tag/v5.2.1 https://github.com/rgrove/sanitize/security/advisories/GHSA-p4x4-rw2p-8j8m https://usn.ubuntu.com/4543-1 https://www.debian.org/security/2020/dsa-4730 • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •