medium4.5
CVE-2025-26791
DOMPurify allows Cross-site Scripting (XSS)
Impact
DOMPurify before 3.2.4 has an incorrect template literal regular expression when SAFE_FOR_TEMPLATES is set to true, sometimes leading to mutation cross-site scripting (mXSS).
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | dompurify | < 3.2.4 | 3.2.4 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Cure53 | Dompurify | before 3.2.4 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://ensy.zip/posts/dompurify-323-bypass/
- https://github.com/cure53/DOMPurify/commit/d18ffcb554e0001748865da03ac75dd7829f0f02
- https://github.com/cure53/DOMPurify/releases/tag/3.2.4
- https://nsysean.github.io/posts/dompurify-323-bypass/
- https://github.com/advisories/GHSA-vhxf-7vqr-mrjg
- https://nvd.nist.gov/vuln/detail/CVE-2025-26791
- https://ensy.zip/posts/dompurify-323-bypass
- https://nsysean.github.io/posts/dompurify-323-bypass