CVE-2022-23519

Summary

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.

Affected Software

Weaknesses

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

ADP Enrichment

CVE Program Container

Additional References

• https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-9h9g-93gc-623h
• https://hackerone.com/reports/1656627
• https://lists.debian.org/debian-lts-announce/2023/09/msg00012.html
• https://lists.debian.org/debian-lts-announce/2024/09/msg00045.html

References

• https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-9h9g-93gc-623h
• https://hackerone.com/reports/1656627
• https://lists.debian.org/debian-lts-announce/2023/09/msg00012.html

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