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.
Advisories
Source ID Title
EUVD EUVD EUVD-2022-26870 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.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Tue, 22 Apr 2025 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2025-04-22T18:34:30.665Z

Reserved: 2021-11-16T00:00:00.000Z

Link: CVE-2022-21649

cve-icon Vulnrichment

Updated: 2024-08-03T02:46:39.529Z

cve-icon NVD

Status : Modified

Published: 2022-01-04T21:15:07.883

Modified: 2024-11-21T06:45:09.153

Link: CVE-2022-21649

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.