CVE-2021-21383

Katalog CVE

CVSS 5.4 · Medium EPSS 0,97%

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

Deskripsi (NVD)

Wiki.js an open-source wiki app built on Node.js. Wiki.js before version 2.5.191 is vulnerable to stored cross-site scripting through mustache expressions in code blocks. This vulnerability exists due to mustache expressions being parsed by Vue during content injection even though it is contained within a `<pre>` element. By creating a crafted wiki page, a malicious Wiki.js user may stage a stored cross-site scripting attack. This allows the attacker to execute malicious JavaScript when the page is viewed by other users. For an example see referenced GitHub Security Advisory. Commit 5ffa189383dd716f12b56b8cae2ba0d075996cf1 fixes this vulnerability by adding the v-pre directive to all `<pre>` tags during the render.

Rincian

Terbit di NVD

18 Maret 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)

0,97% peluang dieksploitasi; lebih tinggi dari 60,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/Requarks/wiki/commit/5ffa189383dd716f12b56b8cae2ba0d075996cf1 patch · advisory pihak ketiga
• https://github.com/Requarks/wiki/security/advisories/GHSA-6xx4-m8gx-826r exploit · patch · advisory pihak ketiga
• https://github.com/Requarks/wiki/releases/tag/2.5.191 release notes · advisory pihak ketiga