CVE-2026-66010

A flaw was found in DOMPurify. This vulnerability allows attackers to bypass application security policies by preserving sensitive attributes on custom elements. These attributes can then be re-injected into web page content, leading to Cross-Site Scripting XSS attacks. An attacker could exploit...

DEBIAN-CVE-2026-66010

DOMPurify before 3.4.12 fails to execute afterSanitizeElements hook for custom elements allowed via CUSTOMELEMENTHANDLING.tagNameCheck, allowing attributes to bypass application security policies. Attackers can preserve sensitive attributes on custom elements that later re-inject them into...

CVE-2026-66010

DOMPurify before 3.4.12 fails to execute afterSanitizeElements hook for custom elements allowed via CUSTOMELEMENTHANDLING.tagNameCheck, allowing attributes to bypass application security policies. Attackers can preserve sensitive attributes on custom elements that later re-inject them into...

CVE-2026-66010

DOMPurify before 3.4.12 fails to execute afterSanitizeElements hook for custom elements allowed via CUSTOMELEMENTHANDLING.tagNameCheck, allowing attributes to bypass application security policies. Attackers can preserve sensitive attributes on custom elements that later re-inject them into...

CVE-2026-66010 DOMPurify before 3.4.12 Hook Bypass via CUSTOM_ELEMENT_HANDLING

DOMPurify before 3.4.12 fails to execute afterSanitizeElements hook for custom elements allowed via CUSTOMELEMENTHANDLING.tagNameCheck, allowing attributes to bypass application security policies. Attackers can preserve sensitive attributes on custom elements that later re-inject them into...

CVE-2026-66010 DOMPurify before 3.4.12 Hook Bypass via CUSTOM_ELEMENT_HANDLING

DOMPurify before 3.4.12 fails to execute afterSanitizeElements hook for custom elements allowed via CUSTOMELEMENTHANDLING.tagNameCheck, allowing attributes to bypass application security policies. Attackers can preserve sensitive attributes on custom elements that later re-inject them into...

CVE-2026-66010 DOMPurify before 3.4.12 Hook Bypass via CUSTOM_ELEMENT_HANDLING

DOMPurify before 3.4.12 fails to execute afterSanitizeElements hook for custom elements allowed via CUSTOMELEMENTHANDLING.tagNameCheck, allowing attributes to bypass application security policies. Attackers can preserve sensitive attributes on custom elements that later re-inject them into...

EUVD-2026-48582

DOMPurify before 3.4.12 fails to execute afterSanitizeElements hook for custom elements allowed via CUSTOMELEMENTHANDLING.tagNameCheck, allowing attributes to bypass application security policies. Attackers can preserve sensitive attributes on custom elements that later re-inject them into...

CVE-2026-66010

DOMPurify before 3.4.12 has a vulnerability where afterSanitizeElements is not executed for custom elements allowed by CUSTOM_ELEMENT_HANDLING.tagNameCheck, enabling attributes to bypass application security policies. Attackers can preserve sensitive attributes on custom elements and later re-inj...

PT-2026-64287

DOMPurify before 3.4.12 fails to execute afterSanitizeElements hook for custom elements allowed via CUSTOM ELEMENT HANDLING.tagNameCheck, allowing attributes to bypass application security policies. Attackers can preserve sensitive attributes on custom elements that later re-inject them into...

Astra Linux – Vulnerability in Chromium

Before version 106.0.5249.91, using “after free” in Custom Elements in Google Chrome allowed a remote attacker to potentially exploit heap corruption through a crafted HTML page. Chromium security severity: High...

CVE-2026-41238

DOMPurify is a DOM-only cross-site scripting sanitizer for HTML, MathML, and SVG. Versions 3.0.1 through 3.3.3 are vulnerable to a prototype pollution-based XSS bypass. When an application uses DOMPurify.sanitize with the default configuration no CUSTOMELEMENTHANDLING option, a prior prototype...

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 leading to cross-site scripting, via custom elements. When CUSTOMELEMENTHANDLING is not enabled, and an attacker has already pollut...

Cross-site Scripting (XSS)

Overview dompurify is a DOM-only XSS sanitizer for HTML, MathML and SVG. Affected versions of this package are vulnerable to Cross-site Scripting XSS leading to cross-site scripting, via custom elements. When CUSTOMELEMENTHANDLING is not enabled, and an attacker has already polluted the prototype...

EUVD-2022-42750

Malicious code in bioql PyPI...

SUSE CVE-2022-3370

Use after free in Custom Elements in Google Chrome prior to 106.0.5249.91 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. Chromium security severity: High...

DEBIAN-CVE-2022-3370

Use after free in Custom Elements in Google Chrome prior to 106.0.5249.91 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. Chromium security severity: High...

CVE-2022-3370

Use after free in Custom Elements in Google Chrome prior to 106.0.5249.91 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. Chromium security severity: High...

Design/Logic Flaw

Use after free in Custom Elements in Google Chrome prior to 106.0.5249.91 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. Chromium security severity: High...

CVE-2022-3370

Use after free in Custom Elements in Google Chrome prior to 106.0.5249.91 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. Chromium security severity: High...