Home/CVE/rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. Versions >= 1.0.3, < 1.4.4 are
CVE

CVE-2022-23518

rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. Versions >= 1.0.3, < 1.4.4 are

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.

MEDIUM · CVSS 6.1 EPSS 0.00312
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
▤

Affected Products & Versions

3
rubyonrails rails html sanitizers>= 1.0.3 and < 1.4.4
debian linuxall versions
loofah project loofah>= 2.1.0 and < 2.19.1
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
RubyGems rails-html-sanitizer MODERATE fixed in 1.4.4
⚠

Public Exploits & PoCs

1
pocgithub.com · issues/135github.com
▣

Scoring & Timeline

6.1
MEDIUM · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD14 Dec 2022 · 05:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
⚑

Vendor Advisories

7
suse-csafopenSUSE-SU-2026:10361-1
suse-csafopenSUSE-SU-2025:15125-1
suse-csafopenSUSE-SU-2024:14175-1
suse-csafopenSUSE-SU-2024:12769-1
suse-csafSUSE-SU-2023:3714-1
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-mcvf-2q2m-x72mThird Party Advisory
https://hackerone.com/reports/1694173Permissions RequiredThird Party Advisory
https://lists.debian.org/debian-lts-announce/2023/09/msg00012.htmlMailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2024/09/msg00045.html
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