CVE-2021-39169: misskey

csirt@kutim:~/threat-intel/cve/CVE-2021-39169

CVSS 5.4 · Medium EPSS 0,74%

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

Deskripsi (NVD)

Misskey is a decentralized microblogging platform. In versions of Misskey prior to 12.51.0, malicious actors can use the web client built-in dialog to display a malicious string, leading to cross-site scripting (XSS). XSS could compromise the API request token. This issue has been fixed in version 12.51.0. There are no known workarounds aside from upgrading.

Rincian

Terbit di NVD: 27 Agustus 2021
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): 0,74% peluang dieksploitasi; lebih tinggi dari 53,2% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
misskey	misskey	Semua versi sebelum 12.51.0

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://github.com/misskey-dev/misskey/commit/ec203f7f795766f76b55fecc9248168c1cdf6c99 patch · advisory pihak ketiga
https://github.com/misskey-dev/misskey/security/advisories/GHSA-pmmv-jwqh-f5ww patch · advisory pihak ketiga

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.