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.
CVE ID: CVE-2024-22411
CVSS Base Severity: MEDIUM
CVSS Base Score: 6.5
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
Vendor: avo-hq
Product: avo
EPSS Score: 4.49% (probability of being exploited)
EPSS Percentile: 88.55% (scored less or equal to compared to others)
EPSS Date: 2025-06-08 (when was this score calculated)
SSVC Exploitation: poc
SSVC Technical Impact: partial
SSVC Automatable: false