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.
References
Link | Resource |
---|---|
https://github.com/convos-chat/convos/security/advisories/GHSA-xmpj-xwm3-vww7 | Patch Third Party Advisory |
https://github.com/convos-chat/convos/commit/86b2193de375005ba71d9dd53843562c6ac1847c | Patch Third Party Advisory |
https://www.huntr.dev/bounties/4532a0ac-4e7c-4fcf-9fe3-630e132325c0/ | Exploit Patch Third Party Advisory |
https://blog.pocas.kr/2021/12/30/2021-12-30-s-xss-convos-chat/#Second-vulnerability | Broken Link Third Party Advisory |
Configurations
Information
Published : 2022-01-04 13:15
Updated : 2022-01-07 18:46
NVD link : CVE-2022-21649
Mitre link : CVE-2022-21649
JSON object : View
CWE
CWE-79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Products Affected
convos
- convos