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certfr-2026-avi-1049 — De multiples vulnérabilités ont été découvertes dans Oracle MySQL. Certaines d'entre elles permettent à un attaquant de…

certfr-2026-avi-1049

EUVD-2026-337973

fkie_cve-2026-49459

DOMPurify is a DOM-only cross-site scripting sanitizer for HTML, MathML, and SVG. Prior to 3.4.6, DOMPurify.sanitize(root, { IN_PLACE: true }) could preserve event-handler attributes on an attacker-controlled <form> root when a descendant name clobbered properties checked by _isClobbered, because _forceRemove no-opped on the parent-less root and _sanitizeAttributes returned early. This issue is fixed in version 3.4.6.

GHSA-r47g-fvhr-h676 — DOMPurify: IN_PLACE mode preserves attributes of a clobbered root element, allowing XSS via attacker-controlled root DOM

Affected: npm: dompurify

# IN_PLACE 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)

## Summary

When `DOMPurify.sanitize(root, { IN_PLACE: true })` is called and `root` is a `<form>` whose own attributes carry an event handler (`onmouseover`, `onfocus`, `onclick`, etc.), a single descendant element with a `name=` attribute matching any of the property names `_isClobbered` checks (`nodeName`, `setAttribute`, `namespaceURI`, `insertBefore`, `hasChildNodes`, `childNodes`) is sufficient to bypass attribute sanitization on the root. `_forceRemove` silently no-ops because the root has no parent; the iterator drives on to `_sanitizeAttributes`, which early-returns on clobbered nodes — and the event handler attribute is never inspected. The sanitized return is the same root, with the handler live.

This affects current `main` at `89da34e` (the just-landed DOM-clobbering hardening fix at `89da34e` addressed `_sanitizeAttachedShadowRoots` walk traversal, **not** the main `_sanitizeElements` / `_sanitizeAttributes` pipeline against the iterator-root node).

## Affected

- DOMPurify ≤ 3.4.5, including `main` at `89da34e03ec17868e561f87f3747a9371b61a9e7` - Any caller that does `DOMPurify.sanitize(node, { IN_PLACE: true })` where `node` is built from untrusted HTML (e.…

UBUNTU-CVE-2026-49459

Affected: Ubuntu:16.04:LTS: dompurify.js, Ubuntu:18.04:LTS: dompurify.js, Ubuntu:22.04:LTS: node-dompurify, Ubuntu:24.04:LTS: node-dompurify, Ubuntu:26.04:LTS: node-dompurify