CVEvulnerability
CVE-2026-65914
5.3 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-07-23
- Last modified
- 2026-10-24
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 5.3 MEDIUM — CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/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 mutation-XSS vulnerability when sanitized HTML is reinserted into special parsing contexts using innerHTML with wrappers like script, xmp, iframe, noembed, noframes, or noscript. Attackers can craft payloads with closing sequences that break out of the wrapper context during reparsing, reactivating dangerous markup with event handlers to execute JavaScript.
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-h8r8-wccr-v5f2 Exploit, Third Party Advisory
- https://www.vulncheck.com/advisories/dompurify-before-mutation-xss-via-re-contextualization Third Party Advisory
- https://github.com/cure53/DOMPurify/security/advisories/GHSA-h8r8-wccr-v5f2 Exploit, Third Party Advisory