CVE Vulnerability

CVE-2022-21650

Convos is an open source multi-user chat that runs in a web browser. You can't use SVG extension in Convos' chat window, but you can upload a file with an .html extension. By uploading an SVG file with an html extension the upload filter can be bypassed. This causes Stored XSS. Also, after uploading a file the XSS attack is triggered upon a user viewing the file. Through this vulnerability, an attacker is capable to execute malicious scripts. Users are advised to update as soon as possible.

3.5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 6.8 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

Scope

5.4 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.3 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References
Link Resource
https://github.com/convos-chat/convos/security/advisories/GHSA-mm2v-4v7g-m695 Patch Third Party Advisory
https://github.com/convos-chat/convos/commit/5c0a1ec9a2c147bc3b63fd5a48da5f32e18fe5df Patch Third Party Advisory
https://blog.pocas.kr/2021/12/30/2021-12-30-s-xss-convos-chat/#First-vulnerability Broken Link
https://www.huntr.dev/bounties/ae424798-de01-4972-b73b-2db674f82368/ Exploit Issue Tracking
Configurations

Configuration 1

cpe:2.3:a:convos:convos:*:*:*:*:*:*:*:*
Information

Published : 2022-01-04 09:15

Updated : 2022-01-11 09:48

NVD link : CVE-2022-21650

Mitre link : CVE-2022-21650

Products Affected
No products.
CWE
CWE-79