CVE-2022-21650: convos

csirt@kutim:~/threat-intel/cve/CVE-2022-21650

CVSS 5.4 · Medium EPSS 0,83%

Kerentanan Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') pada convos. Skor CVSS 3.1 5.4 (Medium) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD: 4 Januari 2022
Terakhir diubah: 17 Juni 2026
Status NVD: Modified
CVSS 3.1: 5.4 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
EPSS (30 hari): 0,83% peluang dieksploitasi; lebih tinggi dari 56,4% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
convos	convos	Versi 6.48 hingga sebelum 6.52

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://github.com/convos-chat/convos/commit/5c0a1ec9a2c147bc3b63fd5a48da5f32e18fe5df patch · advisory pihak ketiga
https://github.com/convos-chat/convos/security/advisories/GHSA-mm2v-4v7g-m695 patch · advisory pihak ketiga
https://www.huntr.dev/bounties/ae424798-de01-4972-b73b-2db674f82368/ exploit · issue tracking · patch · advisory pihak ketiga
https://blog.pocas.kr/2021/12/30/2021-12-30-s-xss-convos-chat/#First-vulnerability broken link

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:10 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.