CVE-2026-65911

Katalog CVE

CVSS 6.1 · Medium EPSS 0,33%

Kerentanan Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') pada cure53 dompurify. Skor CVSS 3.1 6.1 (Medium) menurut vulncheck.com.

Deskripsi (NVD)

In DOMPurify through 3.3.3, function predicates supplied via ADD_ATTR or ADD_TAGS to DOMPurify.sanitize() persist in internal state (EXTRA_ELEMENT_HANDLING) across subsequent sanitize() calls on the same instance. If a later call on the same instance provides ADD_ATTR or ADD_TAGS as an array rather than a function, the previously set function handler is neither cleared nor overwritten, so it continues to approve attacker-controlled attributes or tags. This can allow dangerous event-handler attributes or forbidden tags (bypassing FORBID_TAGS) to survive sanitization, resulting in cross-site scripting. The vendor (Cure53) considers this an edge case outside DOMPurify's threat model; the referenced advisory lists 3.4.0 as the patched version.

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

EPSS (30 hari)

0,33% peluang dieksploitasi; lebih tinggi dari 24,8% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/cure53/DOMPurify/security/advisories/GHSA-9p3w-6h5p-cv75 exploit · advisory pihak ketiga
• https://www.vulncheck.com/advisories/dompurify-before-xss-via-add-attr-add-tags-state-leakage advisory pihak ketiga