DOMPurify: `IN_PLACE` mode trusts attacker-controlled `nodeName` on live non-form nodes, allowing script retention and XSS via attacker-supplied DOM objects

Summary When DOMPurify.sanitizeroot, INPLACE: true is called on an attacker-supplied live DOM node, DOMPurify still trusts currentNode.nodeName for non-form nodes in the main sanitizeElements pipeline. A real child node whose observable nodeName is attacker-controlled can therefore be misclassifi...

1router (>=0.3.96, <=1.0.2), 8router (>=0.5.12, <=0.5.24) +2185 more potentially affected by unknown CVE via dompurify (>=3.0.0, <=3.4.7)

dompurify NPM version =3.0.0, =0.3.96, =0.5.12, =0.3.33, =0.3.0, =0.5.0, =0.4.71, =1.0.0, =1.5.1, =0.18.0-beta.0, =0.1.0-alpha.1, =0.1.0, =0.1.0, =0.0.0-dev-20240828032938, =6.3.4 and more Source cves: unknown CVE Source advisory: SNYK:JS-DOMPURIFY-17342528...

Cross-site Scripting (XSS)

Overview org.webjars.npm:dompurify is a DOM-only XSS sanitizer for HTML, MathML and SVG. Affected versions of this package are vulnerable to Cross-site Scripting XSS in the INPLACE process when attacker-controlled live DOM nodes are sanitized. An attacker can execute arbitrary scripts in the...

1router (>=0.3.96, <=1.0.2), 8router (>=0.5.12, <=0.5.24) +2176 more potentially affected by CVE-2026-65901 via dompurify (>=3.0.0, <=3.4.6)

dompurify NPM version =3.0.0, =0.3.96, =0.5.12, =0.3.33, =0.3.0, =0.5.0, =0.4.71, =1.0.0, =1.5.1, =0.18.0-beta.0, =0.1.0-alpha.1, =0.1.0, =0.1.0, =0.0.0-dev-20240828032938, =6.3.4 and more Source cves: CVE-2026-65901 Source advisory: OSV:GHSA-X4VX-RJVF-J5P4...

Trust Boundary Violation

Overview org.webjars.npm:dompurify is a DOM-only XSS sanitizer for HTML, MathML and SVG. Affected versions of this package are vulnerable to Trust Boundary Violation through the mutation of data.allowedTags or data.allowedAttributes in hooks, which directly alters the global default sets used for...

DOMPurify: Hook mutation of `data.allowedTags` / `data.allowedAttributes` permanently pollutes `DEFAULT_ALLOWED_TAGS` / `DEFAULT_ALLOWED_ATTR`

Hook mutation of data.allowedTags / data.allowedAttributes permanently pollutes DEFAULTALLOWEDTAGS / DEFAULTALLOWEDATTR CWE: CWE-501 Trust Boundary Violation — hook-scoped mutation leaks to global default sets via CWE-693 Protection Mechanism Failure — the default allow-list is silently widened f...

1router (>=0.3.96, <=1.0.2), 8router (>=0.5.12, <=0.5.24) +2176 more potentially affected by unknown CVE via dompurify (>=3.0.0, <=3.4.6)

dompurify NPM version =3.0.0, =0.3.96, =0.5.12, =0.3.33, =0.3.0, =0.5.0, =0.4.71, =1.0.0, =1.5.1, =0.18.0-beta.0, =0.1.0-alpha.1, =0.1.0, =0.1.0, =0.0.0-dev-20240828032938, =6.3.4 and more Source cves: unknown CVE Source advisory: SNYK:JS-DOMPURIFY-17344516...

GHSA-76MC-F452-CXCM DOMPurify: Hook mutation of `data.allowedTags` / `data.allowedAttributes` permanently pollutes `DEFAULT_ALLOWED_TAGS` / `DEFAULT_ALLOWED_ATTR`

Hook mutation of data.allowedTags / data.allowedAttributes permanently pollutes DEFAULTALLOWEDTAGS / DEFAULTALLOWEDATTR CWE: CWE-501 Trust Boundary Violation — hook-scoped mutation leaks to global default sets via CWE-693 Protection Mechanism Failure — the default allow-list is silently widened f...

1router (>=0.3.96, <=1.0.2), 8router (>=0.5.12, <=0.5.24) +2176 more potentially affected by CVE-2026-65902 via dompurify (>=3.0.0, <=3.4.6)

dompurify NPM version =3.0.0, =0.3.96, =0.5.12, =0.3.33, =0.3.0, =0.5.0, =0.4.71, =1.0.0, =1.5.1, =0.18.0-beta.0, =0.1.0-alpha.1, =0.1.0, =0.1.0, =0.0.0-dev-20240828032938, =6.3.4 and more Source cves: CVE-2026-65902 Source advisory: OSV:GHSA-76MC-F452-CXCM...

NPM: DOMPurify: Cross-realm IN_PLACE sanitization leaves executable markup intact via realm-bound `instanceof` checks

NPM: DOMPurify: Cross-realm INPLACE sanitization leaves executable markup intact via realm-bound instanceof checks vulnerability discovered by ? in WordPress Npm dompurify versions = 3.4.5...

1router (>=0.3.96, <=1.0.2), 8router (>=0.5.12, <=0.5.24) +2176 more potentially affected by CVE-2026-49458 via dompurify (>=3.0.0, <=3.4.5)

dompurify NPM version =3.0.0, =0.3.96, =0.5.12, =0.3.33, =0.3.0, =0.5.0, =0.4.71, =1.0.0, =1.5.1, =0.18.0-beta.0, =0.1.0-alpha.1, =0.1.0, =0.1.0, =0.0.0-dev-20240828032938, =6.3.4 and more Source cves: CVE-2026-49458 Source advisory: OSV:GHSA-HPCV-96WG-7VJ8...

1router (>=0.3.96, <=1.0.2), 8router (>=0.5.12, <=0.5.24) +2176 more potentially affected by CVE-2026-49458 via dompurify (>=3.0.0, <=3.4.5)

dompurify NPM version =3.0.0, =0.3.96, =0.5.12, =0.3.33, =0.3.0, =0.5.0, =0.4.71, =1.0.0, =1.5.1, =0.18.0-beta.0, =0.1.0-alpha.1, =0.1.0, =0.1.0, =0.0.0-dev-20240828032938, =6.3.4 and more Source cves: CVE-2026-49458 Source advisory: SNYK:JS-DOMPURIFY-17344526...

Trust Boundary Violation

Overview org.webjars.npm:dompurify is a DOM-only XSS sanitizer for HTML, MathML and SVG. Affected versions of this package are vulnerable to Trust Boundary Violation in the sanitize function when handling DOM nodes from a different same-origin realm due to improper realm-bound instanceof checks. ...

DOMPurify: Cross-realm IN_PLACE sanitization leaves executable markup intact via realm-bound `instanceof` checks

Cross-realm INPLACE sanitization leaves executable markup intact via realm-bound instanceof checks CWE: CWE-79 XSS — Improper Neutralization of Input During Web Page Generation via CWE-693 Protection Mechanism Failure — realm-bound instanceof checks fail-open on foreign-realm DOM nodes and CWE-50...

Trust Boundary Violation

Overview dompurify is a DOM-only XSS sanitizer for HTML, MathML and SVG. Affected versions of this package are vulnerable to Trust Boundary Violation in the sanitize function when handling DOM nodes from a different same-origin realm due to improper realm-bound instanceof checks. An attacker can...

Prototype Pollution

Overview org.webjars.npm:dompurify is a DOM-only XSS sanitizer for HTML, MathML and SVG. Affected versions of this package are vulnerable to Prototype Pollution in the INPLACE function when sanitizing a root element that is a with event handler attributes and a descendant element whose name...

GHSA-R47G-FVHR-H676 DOMPurify: IN_PLACE mode preserves attributes of a clobbered root element, allowing XSS via attacker-controlled root DOM

INPLACE mode preserves attributes of a clobbered root element, allowing XSS via attacker-controlled root DOM CWE: CWE-79 XSS — Improper Neutralization of Input During Web Page Generation via CWE-693 Protection Mechanism Failure — silent no-op when forceRemove is called on a parent-less node Summa...

NPM: DOMPurify: IN_PLACE mode preserves attributes of a clobbered root element, allowing XSS via attacker-controlled root DOM

NPM: DOMPurify: INPLACE mode preserves attributes of a clobbered root element, allowing XSS via attacker-controlled root DOM vulnerability discovered by ? in WordPress Npm dompurify versions = 3.4.5...

1router (>=0.3.96, <=1.0.2), 8router (>=0.5.12, <=0.5.24) +2176 more potentially affected by CVE-2026-49459 via dompurify (>=3.0.0, <=3.4.5)

dompurify NPM version =3.0.0, =0.3.96, =0.5.12, =0.3.33, =0.3.0, =0.5.0, =0.4.71, =1.0.0, =1.5.1, =0.18.0-beta.0, =0.1.0-alpha.1, =0.1.0, =0.1.0, =0.0.0-dev-20240828032938, =6.3.4 and more Source cves: CVE-2026-49459 Source advisory: OSV:GHSA-R47G-FVHR-H676...

1router (>=0.3.96, <=1.0.2), 8router (>=0.5.12, <=0.5.24) +2176 more potentially affected by CVE-2026-49459 via dompurify (>=3.0.0, <=3.4.5)

dompurify NPM version =3.0.0, =0.3.96, =0.5.12, =0.3.33, =0.3.0, =0.5.0, =0.4.71, =1.0.0, =1.5.1, =0.18.0-beta.0, =0.1.0-alpha.1, =0.1.0, =0.1.0, =0.0.0-dev-20240828032938, =6.3.4 and more Source cves: CVE-2026-49459 Source advisory: SNYK:JS-DOMPURIFY-17344538...