How severe is CVE-2024-53989?

CVE-2024-53989 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2024-53989 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-53989?

CVE-2024-53989 affects Rubyonrails Rails Html Sanitizers. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-53989?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-53989 have an EU (EUVD) identifier?

Yes. CVE-2024-53989 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-3507.

When was CVE-2024-53989 published?

CVE-2024-53989 was published on 2024-12-02 and last updated on 2026-06-17.

CVE-2024-53989

CVE-2024-53989 is a medium-severity vulnerability in Rubyonrails Rails Html Sanitizers with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v4: 2.3
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-3507
Weakness: CWE-79
Affected product: Rubyonrails Rails Html Sanitizers
Published: 2024-12-02
Last modified: 2026-06-17

Description

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 for the the "noscript" element. This vulnerability is fixed in 1.6.1.

Frequently asked questions

What is CVE-2024-53989?: 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 for the the "noscript" element. This vulnerability is fixed in 1.6.1.
How severe is CVE-2024-53989?: CVE-2024-53989 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2024-53989 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-53989?: CVE-2024-53989 affects Rubyonrails Rails Html Sanitizers. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-53989?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-53989 have an EU (EUVD) identifier?: Yes. CVE-2024-53989 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-3507.
When was CVE-2024-53989 published?: CVE-2024-53989 was published on 2024-12-02 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:rubyonrails:rails_html_sanitizers:1.6.0:*:*:*:*:rails:*:*

More vulnerabilities in Rubyonrails Rails Html Sanitizers

CVE-2022-23517 — High (CVSS 7.5): rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. Certain configurations of…
CVE-2022-23519 — High (CVSS 7.2): rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. Prior to version 1.4.4, a…
CVE-2024-53988 — Medium (CVSS 6.1): rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. There is a possible XSS…
CVE-2024-53987 — Medium (CVSS 6.1): rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. There is a possible XSS…
CVE-2024-53986 — Medium (CVSS 6.1): rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. There is a possible XSS…
CVE-2024-53985 — Medium (CVSS 6.1): rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. There is a possible XSS…

All CVEs affecting Rubyonrails Rails Html Sanitizers →

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

CVE-2025-49410 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Imran Emu TC…
CVE-2024-47875 — Critical (CVSS 10.0): DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMpurify was vulnerable to…
CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
CVE-2023-45144 — Critical (CVSS 10.0): com.xwiki.identity-oauth:identity-oauth-ui is a package to aid in building identity and service providers based on…
CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…

Browse all CWE-79 (Cross-site Scripting (XSS)) vulnerabilities →