CVE-2021-39175

Katalog CVE

CVSS 6.1 · Medium EPSS 0,60%

Kerentanan Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') pada hedgedoc. Skor CVSS 3.1 6.1 (Medium) menurut NVD.

Deskripsi (NVD)

HedgeDoc is a platform to write and share markdown. In versions prior to 1.9.0, an unauthenticated attacker can inject arbitrary JavaScript into the speaker-notes of the slide-mode feature by embedding an iframe hosting the malicious code into the slides or by embedding the HedgeDoc instance into another page. The problem is patched in version 1.9.0. There are no known workarounds aside from upgrading.

Rincian

Terbit di NVD

30 Agustus 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

6.1 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CWE-346: Origin Validation Error
CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

EPSS (30 hari)

0,60% peluang dieksploitasi; lebih tinggi dari 47,3% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/hedgedoc/hedgedoc/pull/1369 patch · advisory pihak ketiga
• https://github.com/hedgedoc/hedgedoc/pull/1375 patch · advisory pihak ketiga
• https://github.com/hedgedoc/hedgedoc/pull/1513 patch · advisory pihak ketiga
• https://github.com/hedgedoc/hedgedoc/security/advisories/GHSA-j748-779h-9697 patch · advisory pihak ketiga