CVE-2022-21649
Description
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.
- CVSS Version 3.1
- CVSS Version 2.0
nvd
CVE ID: CVE-2022-21649
Base Score: 5.4
Base Severity: MEDIUM
Vector String:CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Impact Score: 2.7
Exploitability Score: 2.3
github
CVE ID: CVE-2022-21649
Base Score: 7.6
Base Severity: HIGH
Vector String:CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
Impact Score: 4.7
Exploitability Score: 2.3
nvd
CVE ID: CVE-2022-21649
Base Score: 3.5
Base Severity: LOW
Vector String:AV:N/AC:M/Au:S/C:N/I:P/A:N