{"uuid": "9ddb3ba2-69f4-4bac-89e2-84ca49d6bbe0", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2022-21650", "type": "published-proof-of-concept", "source": "https://t.me/DarkWebInformer_CVEAlerts/12947", "content": "\ud83d\udd17 DarkWebInformer.com - Cyber Threat Intelligence\n\ud83d\udccc CVE ID: CVE-2022-21650\n\ud83d\udd25 CVSS Score: 7.6 (cvssV3_1, Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N)\n\ud83d\udd39 Description: 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.\n\ud83d\udccf Published: 2022-01-04T20:40:14.000Z\n\ud83d\udccf Modified: 2025-04-22T18:34:37.741Z\n\ud83d\udd17 References:\n1. https://blog.pocas.kr/2021/12/30/2021-12-30-s-xss-convos-chat/#First-vulnerability\n2. https://github.com/convos-chat/convos/commit/5c0a1ec9a2c147bc3b63fd5a48da5f32e18fe5df\n3. https://www.huntr.dev/bounties/ae424798-de01-4972-b73b-2db674f82368/\n4. https://github.com/convos-chat/convos/security/advisories/GHSA-mm2v-4v7g-m695", "creation_timestamp": "2025-04-22T19:03:42.000000Z"}