Vulnerability Description
DOMPurify before 3.2.4 has an incorrect template literal regular expression, sometimes leading to mutation cross-site scripting (mXSS).
CVSS Score
4.5
MEDIUM
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cure53 | Dompurify | < 3.2.4 |
Related Weaknesses (CWE)
References
- https://ensy.zip/posts/dompurify-323-bypass/ExploitThird Party Advisory
- https://github.com/cure53/DOMPurify/commit/d18ffcb554e0001748865da03ac75dd7829f0Patch
- https://github.com/cure53/DOMPurify/releases/tag/3.2.4Release Notes
- https://nsysean.github.io/posts/dompurify-323-bypass/ExploitThird Party Advisory
- https://ensy.zip/posts/dompurify-323-bypass/ExploitThird Party Advisory
FAQ
What is CVE-2025-26791?
CVE-2025-26791 is a vulnerability with a CVSS score of 4.5 (MEDIUM). DOMPurify before 3.2.4 has an incorrect template literal regular expression, sometimes leading to mutation cross-site scripting (mXSS).
How severe is CVE-2025-26791?
CVE-2025-26791 has been rated MEDIUM with a CVSS base score of 4.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-26791?
Check the references section above for vendor advisories and patch information. Affected products include: Cure53 Dompurify.