Vulnerability Description
rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. Prior to version 1.4.4, there is a possible XSS vulnerability with certain configurations of Rails::Html::Sanitizer due to an incomplete fix of CVE-2022-32209. Rails::Html::Sanitizer may allow an attacker to inject content if the application developer has overridden the sanitizer's allowed tags to allow both "select" and "style" elements. Code is only impacted if allowed tags are being overridden. This issue is patched in version 1.4.4. All users overriding the allowed tags to include both "select" and "style" should either upgrade or use this workaround: Remove either "select" or "style" from the overridden allowed tags. NOTE: Code is _not_ impacted if allowed tags are overridden using either the :tags option to the Action View helper method sanitize or the :tags option to the instance method SafeListSanitizer#sanitize.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Rubyonrails | Rails Html Sanitizers | < 1.4.4 |
| Debian | Debian Linux | 10.0 |
Related Weaknesses (CWE)
References
- https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-rrfc-7g8pExploitThird Party Advisory
- https://hackerone.com/reports/1654310ExploitThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/09/msg00012.htmlMailing ListThird Party Advisory
- https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-rrfc-7g8pExploitThird Party Advisory
- https://hackerone.com/reports/1654310ExploitThird 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
FAQ
What is CVE-2022-23520?
CVE-2022-23520 is a vulnerability with a CVSS score of 6.1 (MEDIUM). rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. Prior to version 1.4.4, there is a possible XSS vulnerability with certain configurations of Rails::Html::Sanit...
How severe is CVE-2022-23520?
CVE-2022-23520 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-23520?
Check the references section above for vendor advisories and patch information. Affected products include: Rubyonrails Rails Html Sanitizers, Debian Debian Linux.