CVE-2022-23519
Prior to version 1.4.4, a possible XSS vulnerability with certain configurations of Rails::Html::Sanitizer may allow an attacker to inject content if the application developer has overridden the sanitizer's allowed tags in either of the following ways:…
Does this matter?
Lower severity and a low EPSS score (0.99%). Track it; it rarely justifies an emergency change on its own.
Description
rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. Prior to version 1.4.4, a possible XSS vulnerability with certain configurations of Rails::Html::Sanitizer may allow an attacker to inject content if the application developer has overridden the sanitizer's allowed tags in either of the following ways: allow both "math" and "style" elements, or allow both "svg" and "style" elements. Code is only impacted if allowed tags are being overridden. . This issue is fixed in version 1.4.4. All users overriding the allowed tags to include "math" or "svg" and "style" should either upgrade or use the following workaround immediately: Remove "style" from the overridden allowed tags, or remove "math" and "svg" from the overridden allowed tags.
- CVSS 3.1
- 6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 0.99% probability · 61th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- rubyonrails/rails html sanitizers · debian/debian linux
- Source
- security-advisories@github.com
References
- https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-9h9g-93gc-623hExploit, Third Party Advisory
- https://hackerone.com/reports/1656627Exploit, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/09/msg00012.htmlMailing List, Third Party Advisory
- https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-9h9g-93gc-623hExploit, Third Party Advisory
- https://hackerone.com/reports/1656627Exploit, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/09/msg00012.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2024/09/msg00045.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.