CVE-2022-21649: Convos

Medium severity, CVSS 5.4. EPSS: 0.9% chance of exploitation in the next 30 days.

Convos is an open source multi-user chat that runs in a web browser. Characters starting with "https://" in the chat window create an <a> tag. Stored XSS vulnerability using onfocus and autofocus occurs because escaping exists for "<" or ">" but escaping for double quotes does not exist. Through this vulnerability, an attacker is capable to execute malicious scripts. Users are advised to update as soon as possible.

Affected products

• Convos Convos: before 6.52 (fixed in 6.52)

Published 2022-01-04. Last modified 2026-06-17.