CVE-2022-21649 HIGH

CVE-2022-21649: Stored XSS via attribute in convos

Vendor Convos-Chat
Product convos
Weakness CWE-79 · XSS
Published January 4, 2022
Last update April 22, 2025
View on NVD All CVEs

CVSS base score

7.6/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction Required
Confidentiality High
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

January 4, 2022 CVE published
April 22, 2025 Record updated

Related vulnerabilities

04Related CVE

CVE-2024-56018 WordPress BU Section Editing Plugin <= 0.9.9 - Reflected Cross Site Scripting (XSS) vulnerability CVE-2024-34811 WordPress WP SMS plugin <= 6.5.1 - Cross Site Scripting (XSS) vulnerability CVE-2025-53422 WordPress WhatsApp Chat for WordPress and WooCommerce plugin <= 1.2.1 - Cross Site Scripting (XSS) vulnerability CVE-2026-32521 WordPress WP Custom Admin Interface plugin <= 7.42 - Cross Site Scripting (XSS) vulnerability CVE-2024-3547 Unlimited Elements For Elementor (Free Widgets, Addons, Templates) <= 1.5.102 - Reflected Cross-Site Scripting