Avo is a framework to create admin panels for Ruby on Rails apps. In Avo 3 pre12, any HTML inside text that is passed to error or succeed in an Avo::BaseAction subclass will be rendered directly without sanitization in the toast/notification that appears in the UI on Action completion. A malicious user could exploit this vulnerability to trigger a cross site scripting attack on an unsuspecting user. This issue has been addressed in the 3.3.0 and 2.47.0 releases of Avo. Users are advised to upgrade.

References

• GHSA-g8vp-2v5p-9qfh
• https://nvd.nist.gov/vuln/detail/CVE-2024-22411
• avo-hq/avo@51bb80b
• avo-hq/avo@fc92a05
• https://github.com/avo-hq/avo/releases/tag/v2.47.0
• https://github.com/avo-hq/avo/releases/tag/v3.3.0
• https://github.com/rubysec/ruby-advisory-db/blob/master/gems/avo/CVE-2024-22411.yml