CVE-2022-21650 — Stored XSS via html file upload in convos
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 up…
Published: 2022-01-04 · CVSS: 7.6 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7