GHSA-mcvf-2q2m-x72m
Suggest an improvement- Source
- https://github.com/advisories/GHSA-mcvf-2q2m-x72m
- Import Source
- https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/12/GHSA-mcvf-2q2m-x72m/GHSA-mcvf-2q2m-x72m.json
- JSON Data
- https://api.osv.dev/v1/vulns/GHSA-mcvf-2q2m-x72m
- Aliases
- Published
- 2022-12-13T17:45:39Z
- Modified
- 2025-11-04T17:04:00.396884Z
- Severity
-
- 6.1 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
- Summary
- Improper neutralization of data URIs may allow XSS in rails-html-sanitizer
- Details
-
Summary
rails-html-sanitizer
>= 1.0.3, < 1.4.4is vulnerable to cross-site scripting via data URIs when used in combination with Loofah>= 2.1.0.Mitigation
Upgrade to rails-html-sanitizer
>= 1.4.4.Severity
The maintainers have evaluated this as Medium Severity 6.1.
References
- CWE - CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (4.9)
- SVG MIME Type (image/svg+xml) is misleading to developers · Issue #266 · w3c/svgwg
- https://github.com/rails/rails-html-sanitizer/issues/135
- https://hackerone.com/reports/1694173
Credit
This vulnerability was independently reported by Maciej Piechota (@haqpl) and Mrinmoy Das (@goromlagche).
- Database specific
{ "nvd_published_at": "2022-12-14T17:15:00Z", "github_reviewed_at": "2022-12-13T17:45:39Z", "cwe_ids": [ "CWE-79" ], "severity": "MODERATE", "github_reviewed": true }- References
-
- https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-mcvf-2q2m-x72m
- https://nvd.nist.gov/vuln/detail/CVE-2022-23518
- https://github.com/rails/rails-html-sanitizer/issues/135
- https://github.com/w3c/svgwg/issues/266
- https://hackerone.com/reports/1694173
- https://github.com/rails/rails-html-sanitizer
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rails-html-sanitizer/CVE-2022-23518.yml
- https://lists.debian.org/debian-lts-announce/2023/09/msg00012.html
- https://lists.debian.org/debian-lts-announce/2024/09/msg00045.html
Affected packages
RubyGems / rails-html-sanitizer
Package
- Name
- rails-html-sanitizer
- Purl
- pkg:gem/rails-html-sanitizer