GHSA-v2wj-7wpq-c8vv
DOMPurify contains a Cross-site Scripting vulnerability
At a glance
- Published
- Updated
- CVE
- CVE-2026-0540
- CVSS_V3
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- CVSS_V4
- 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
Description
DOMPurify 3.1.3 through 3.3.1 and 2.5.3 through 2.5.8, fixed in 2.5.9 and 3.3.2, contain a cross-site scripting vulnerability that allows attackers to bypass attribute sanitization by exploiting five missing rawtext elements (noscript, xmp, noembed, noframes, iframe) in the `SAFE_FOR_XML` regex. Attackers can include payloads like `</noscript><img src=x onerror=alert(1)>` in attribute values to execute JavaScript when sanitized output is placed inside these unprotected rawtext contexts.
Affected packages
| Package | Versions |
|---|---|
| npm · dompurify | introduced 3.1.3, fixed 3.3.2 |
| npm · dompurify | introduced 2.5.3, fixed 2.5.9 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-0540 ADVISORY
- https://github.com/cure53/DOMPurify/commit/302b51de22535cc90235472c52e3401bedd46f80 WEB
- https://github.com/cure53/DOMPurify/commit/fca0a938b4261ddc9c0293a289935a9029c049f5 WEB
- https://fluidattacks.com/advisories/daft WEB
- https://github.com/cure53/DOMPurify PACKAGE
- https://github.com/cure53/DOMPurify/releases/tag/3.3.2 WEB
- https://www.vulncheck.com/advisories/dompurify-xss-via-missing-rawtext-elements-in-safe-for-xml WEB
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |