CVE-2021-43842

Katalog CVE

CVSS 5.4 · Medium EPSS 0,74%

Kerentanan Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') pada requarks wiki.js. Skor CVSS 3.1 5.4 (Medium) menurut github.com.

Deskripsi (NVD)

Wiki.js is a wiki app built on Node.js. Wiki.js versions 2.5.257 and earlier are vulnerable to stored cross-site scripting through a SVG file upload. By creating a crafted SVG file, a malicious Wiki.js user may stage a stored cross-site scripting attack. This allows the attacker to execute malicious JavaScript when the SVG is viewed directly by other users. Scripts do not execute when loaded inside a page via normal `<img>` tags. Commit 5d3e81496fba1f0fbd64eeb855f30f69a9040718 fixes this vulnerability by adding an optional (enabled by default) SVG sanitization step to all file uploads that match the SVG mime type. As a workaround, disable file upload for all non-trusted users. Wiki.js version 2.5.260 is the first production version to contain a patch. Version 2.5.258 is the first development build to contain a patch and is available only as a Docker image as requarks/wiki:canary-2.5.258.

Rincian

Terbit di NVD

20 Desember 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

5.4 (Medium), sumber github.com
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 53,5% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/Requarks/wiki/commit/5d3e81496fba1f0fbd64eeb855f30f69a9040718 patch · advisory pihak ketiga
• https://github.com/Requarks/wiki/security/advisories/GHSA-3qv4-gp35-rgh7 patch · advisory pihak ketiga
• https://github.com/Requarks/wiki/releases/tag/2.5.260 release notes · advisory pihak ketiga