CVE-2026-41240
⚪ Do wiadomości
Niespójność w DOMPurify pozwala na przetrwanie zabronionych elementów podczas sanitizacji.
CVSS
6.1
EPSS
0.0%
Exploit
poc
Vendor
cure53
Opis źródłowy (NVD)
DOMPurify is a DOM-only cross-site scripting sanitizer for HTML, MathML, and SVG. Versions prior to 3.4.0 have an inconsistency between FORBID_TAGS and FORBID_ATTR handling when function-based ADD_TAGS is used. Commit c361baa added an early exit for FORBID_ATTR at line 1214. The same fix was not applied to FORBID_TAGS. At line 1118-1123, when EXTRA_ELEMENT_HANDLING.tagCheck returns true, the short-circuit evaluation skips the FORBID_TAGS check entirely. This allows forbidden elements to survive sanitization with their attributes intact. Version 3.4.0 patches the issue.
exploit xss
Brak patcha
Źródła i daty
| Źródło | Wartość |
|---|---|
| NVD – CVSS | 6.1 |
| CISA KEV (aktywnie wykorzystywane) | Nie |
| FIRST EPSS (prawdopodobieństwo exploita) | 0.0% |
| Opublikowano (NVD) | 2026-04-23 16:16:26 UTC |
| Ostatnia modyfikacja (NVD) | 2026-04-29 14:58:30 UTC |
Referencje
- https://github.com/cure53/DOMPurify/commit/c361baa18dbdcb3344a41110f4c48ad85bf48f80 (security-advisories@github.com) [Patch]
- https://github.com/cure53/DOMPurify/releases/tag/3.4.0 (security-advisories@github.com) [Product, Release Notes]
- https://github.com/cure53/DOMPurify/security/advisories/GHSA-h7mw-gpvr-xq4m (security-advisories@github.com) [Exploit, Mitigation, Patch, Vendor Advisory]