CVE-2026-33209

Published March 20th, 2026

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CVSS v3

6.1

MEDIUM

CVSS v2

N/A

Affected

PROJECT

Description

Avo is a framework to create admin panels for Ruby on Rails apps. Prior to version 3.30.3, a reflected cross-site scripting (XSS) vulnerability exists in the return_to query parameter used in the avo interface. An attacker can craft a malicious URL that injects arbitrary JavaScript, which is executed when he clicks a dynamically generated navigation button. This issue has been patched in version 3.30.3.

avo-hq/avo

The Essential Toolkit for building Internal Tools and admin panels with Ruby on Rails

GitHub

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