CVEvulnerability
CVE-2026-65912
5.1 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-07-23
- Last modified
- 2026-10-24
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 5.1 MEDIUM — 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
- CVSS 3.1 ([email protected])
- 6.1 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- Weaknesses
- CWE-79
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.
Affected configurations
• cure53 dompurify (< 3.3.2)
Related
Weakness · CWE (1)
- CWE-79 Improper Neutralization of Input During Web Page Generation weakness
References
- 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