CVE-2020-26870

Katalog CVE

CVSS 6.1 · Medium EPSS 4,9%

Kerentanan Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') pada cure53 dompurify, debian linux +3 lainnya. Skor CVSS 3.1 6.1 (Medium) menurut NVD.

Deskripsi (NVD)

Cure53 DOMPurify before 2.0.17 allows mutation XSS. This occurs because a serialize-parse roundtrip does not necessarily return the original DOM tree, and a namespace can change from HTML to MathML, as demonstrated by nesting of FORM elements.

Rincian

Terbit di NVD

7 Oktober 2020

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-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

EPSS (30 hari)

4,9% peluang dieksploitasi; lebih tinggi dari 91,8% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-26870 patch · advisory vendor
• https://github.com/cure53/DOMPurify/commit/02724b8eb048dd219d6725b05c3000936f11d62d patch · advisory pihak ketiga
• https://github.com/cure53/DOMPurify/compare/2.0.16...2.0.17 patch · advisory pihak ketiga
• https://www.oracle.com//security-alerts/cpujul2021.html patch · advisory pihak ketiga
• https://lists.debian.org/debian-lts-announce/2020/10/msg00029.html mailing list · advisory pihak ketiga
• https://research.securitum.com/mutation-xss-via-mathml-mutation-dompurify-2-0-17-bypass/ exploit · advisory pihak ketiga