rails/rails-html-sanitizer · Security
Improper neutralization of data URIs may allow XSS in rails-html-sanitizer
- GHSA ID
- GHSA-mcvf-2q2m-x72m
- CVE ID
- CVE-2022-23518
- Severity
- medium
- Published
- Updated
- CVSS
- 6.1 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- CVSS v3
- 6.1 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Description
Summary
rails-html-sanitizer >= 1.0.3, < 1.4.4 is 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).
CWEs
- CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
References
- https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-mcvf-2q2m-x72m ↗
- https://github.com/rails/rails-html-sanitizer/issues/135 ↗
- https://github.com/w3c/svgwg/issues/266 ↗
- https://hackerone.com/reports/1694173 ↗
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rails-html-sanitizer/CVE-2022-23518.yml ↗
- https://nvd.nist.gov/vuln/detail/CVE-2022-23518 ↗
- https://lists.debian.org/debian-lts-announce/2023/09/msg00012.html ↗
- https://lists.debian.org/debian-lts-announce/2024/09/msg00045.html ↗
- https://github.com/advisories/GHSA-mcvf-2q2m-x72m ↗