CVE-2026-65912

6.1 Moyenne

Publiée le 23/07/2026 à 16:18 · Modifiée le 24/10/2026 à 15:10 · Analysée par le NVD · Source : disclosure@vulncheck.com

Description

DOMPurify before 3.3.2 contains a URI validation bypass vulnerability when ADD_ATTR is provided as a predicate function via EXTRA_ELEMENT_HANDLING.attributeCheck. Attackers can supply a predicate that accepts specific attribute and tag combinations to bypass URI-safe validation, allowing unsafe protocols like javascript: to survive sanitization and execute as DOM-based XSS when the link is activated.

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Produits concernés

cure53 DOMPurify

Scores CVSS

Version	Score	Source	Vecteur
4.0	5.1 Moyenne	disclosure@vulncheck.com	`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X`
3.1	6.1 Moyenne	disclosure@vulncheck.com	`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N`

Faiblesses (CWE)

CWE-79

Références

https://github.com/cure53/DOMPurify/security/advisories/GHSA-cjmm-f4jc-qw8r Third Party Advisory
https://www.vulncheck.com/advisories/dompurify-before-uri-validation-bypass-via-add-attr Third Party Advisory

CVE-2026-65912

Description

Produits concernés

Scores CVSS

Faiblesses (CWE)

Références

Ailleurs