XSS in Rgrove Sanitize
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. This issue has been patched in version 6.0.1. Users who are unable to upgrade can prevent this issue by using one of Sanitize's default configs or by ensuring that their custom config does not include `noscript` in the element allowlist.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.005 (41.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Rgrove Sanitize — versions >= 5.0.0, < 6.0.1
- Sanitize_project Sanitize
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory, Release Notes, Mitigation)
Frequently asked questions
- What is CVE-2023-23627?
- CVE-2023-23627 is a medium-severity vulnerability in Rgrove Sanitize, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2023-01-28.
- How severe is CVE-2023-23627?
- Medium severity. CVSS v3 base score is 6.1 out of 10.