How severe is CVE-2022-23518?

CVE-2022-23518 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-2022-23518 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-23518?

CVE-2022-23518 primarily affects Rubyonrails Rails Html Sanitizers. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-23518?

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

When was CVE-2022-23518 published?

CVE-2022-23518 was published on 2022-12-14 and last updated on 2026-06-17.

CVE-2022-23518

CVE-2022-23518 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)
EPSS exploit prediction: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Rubyonrails Rails Html Sanitizers
Published: 2022-12-14
Last modified: 2026-06-17

Description

rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. Versions >= 1.0.3, < 1.4.4 are vulnerable to cross-site scripting via data URIs when used in combination with Loofah >= 2.1.0. This issue is patched in version 1.4.4.

Frequently asked questions

What is CVE-2022-23518?: rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. Versions >= 1.0.3, < 1.4.4 are vulnerable to cross-site scripting via data URIs when used in combination with Loofah >= 2.1.0. This issue is patched in version 1.4.4.
How severe is CVE-2022-23518?: CVE-2022-23518 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-2022-23518 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-23518?: CVE-2022-23518 primarily affects Rubyonrails Rails Html Sanitizers. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-23518?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-23518 published?: CVE-2022-23518 was published on 2022-12-14 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:rubyonrails:rails_html_sanitizers:*:*:*:*:*:rails:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:a:loofah_project:loofah:*:*:*:*:*:ruby:*:*

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 →