CVE-2022-21649
High
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.
SeverityHigh
CVSS7.6
Exploit probability—
ProductConvos
PublishedJan 4, 2022
First seenJan 4, 2022
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- convos convos6.52 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| convos convos | v < 6.52 | 6.52 |
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