What is CVE-2024-53986?

CVE-2024-53986 is a medium-severity vulnerability in Rails Rails-Html-Sanitizer, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2024-12-02.

How severe is CVE-2024-53986?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Rails Rails-Html-Sanitizer

CVE-2024-53986

rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. There is a possible XSS vulnerability with certain configurations of Rails::HTML::Sanitizer 1.6.0 when used with Rails >= 7.1.0. A possible XSS vulnerability with certain configurations of Rails::HTML::Sanitizer may allow an attacker to inject content if HTML5 sanitization is enabled and the application developer has overridden the sanitizer's allowed tags where the "math" and "style" elements are both explicitly allowed. This vulnerability is fixed in 1.6.1.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.005 (37.6th 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

Rails Rails-html-sanitizer — versions >= 1.6.0, < 1.6.1
Rubyonrails Rails_html_sanitizers — versions 1.6.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
security-advisories@github.com (Patch, x_refsource_MISC)

Frequently asked questions

What is CVE-2024-53986?: CVE-2024-53986 is a medium-severity vulnerability in Rails Rails-Html-Sanitizer, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2024-12-02.
How severe is CVE-2024-53986?: Medium severity. CVSS v3 base score is 6.1 out of 10.