CVE-2026-65902

Katalog CVE

CVSS 6.1 · Medium EPSS 0,36%

Kerentanan Trust Boundary Violation pada cure53 dompurify. Skor CVSS 3.1 6.1 (Medium) menurut vulncheck.com.

Deskripsi (NVD)

DOMPurify before 3.4.7 (affected versions <= 3.4.5) passes direct references to the module-level DEFAULT_ALLOWED_TAGS and DEFAULT_ALLOWED_ATTR sets to the uponSanitizeElement and uponSanitizeAttribute hooks via data.allowedTags / data.allowedAttributes when sanitize is called without an explicit cfg.ALLOWED_TAGS / cfg.ALLOWED_ATTR array. A hook that mutates these fields permanently widens the default allow-lists for the lifetime of the DOMPurify instance, so all subsequent default-config sanitize calls inherit the widened defaults and attacker payloads using the poisoned tag/attribute name survive sanitization. removeAllHooks(), clearConfig(), and passing a fresh cfg do not recover the state; only constructing a new DOMPurify instance does.

Rincian

Terbit di NVD

23 Juli 2026

Terakhir diubah

28 Juli 2026

Status NVD

Analyzed

CVSS 3.1

6.1 (Medium), sumber vulncheck.com
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-501: Trust Boundary Violation

EPSS (30 hari)

0,36% peluang dieksploitasi; lebih tinggi dari 27,4% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/cure53/DOMPurify/commit/7996f1dc78eb8b7922388aed75d94a9f8fad9a36 patch
• https://github.com/cure53/DOMPurify/security/advisories/GHSA-76mc-f452-cxcm exploit · advisory pihak ketiga
• https://www.vulncheck.com/advisories/dompurify-before-hook-mutation-pollution-via-allowedtags advisory pihak ketiga