CVE-2026-65900 - Medium Severity Vulnerability
Vulnerable Library - dompurify-3.4.1.tgz
DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. It's written in JavaScript and works in all modern browsers (Safari, Opera (15+), Internet Explorer (10+), Firefox and Chrome - as well as almost anything else usin
Library home page: https://registry.npmjs.org/dompurify/-/dompurify-3.4.1.tgz
Path to dependency file: /package.json
Path to vulnerable library: /home/wss-scanner/.yarn/berry/cache/dompurify-npm-3.4.1-2e11e310a8-10.zip
Dependency Hierarchy:
- ❌ dompurify-3.4.1.tgz (Vulnerable Library)
Found in HEAD commit: d87706978173ac6516da5e83374518c21263b77b
Found in base branch: master
Vulnerability Details
DOMPurify versions >=3.0.0 and before 3.4.8, when configured with SAFE_FOR_TEMPLATES together with a DOM output mode (RETURN_DOM, RETURN_DOM_FRAGMENT, or IN_PLACE), fail to strip template expressions (e.g. ${evil}, {{evil}}, <%evil%>) inside element content. The final normalization/scrub pass (_scrubTemplateExpressions) uses a NodeIterator and node.normalize() that do not descend into template.content, so expressions that only form after adjacent text nodes merge survive sanitization. This bypasses SAFE_FOR_TEMPLATES and can allow a downstream template engine to evaluate attacker-supplied expressions. The string output path is not affected.
Publish Date: 2026-07-23
URL: CVE-2026-65900
CVSS 3 Score Details (6.1)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: Required
- Scope: Changed
- Impact Metrics:
- Confidentiality Impact: Low
- Integrity Impact: Low
- Availability Impact: None
For more information on CVSS3 Scores, click here.
Suggested Fix
Type: Upgrade version
Release Date: 2026-07-23
Fix Resolution: https://github.com/cure53/DOMPurify.git - 3.4.8
Step up your Open Source Security Game with Mend here
CVE-2026-65900 - Medium Severity Vulnerability
DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. It's written in JavaScript and works in all modern browsers (Safari, Opera (15+), Internet Explorer (10+), Firefox and Chrome - as well as almost anything else usin
Library home page: https://registry.npmjs.org/dompurify/-/dompurify-3.4.1.tgz
Path to dependency file: /package.json
Path to vulnerable library: /home/wss-scanner/.yarn/berry/cache/dompurify-npm-3.4.1-2e11e310a8-10.zip
Dependency Hierarchy:
Found in HEAD commit: d87706978173ac6516da5e83374518c21263b77b
Found in base branch: master
DOMPurify versions >=3.0.0 and before 3.4.8, when configured with SAFE_FOR_TEMPLATES together with a DOM output mode (RETURN_DOM, RETURN_DOM_FRAGMENT, or IN_PLACE), fail to strip template expressions (e.g. ${evil}, {{evil}}, <%evil%>) inside element content. The final normalization/scrub pass (_scrubTemplateExpressions) uses a NodeIterator and node.normalize() that do not descend into template.content, so expressions that only form after adjacent text nodes merge survive sanitization. This bypasses SAFE_FOR_TEMPLATES and can allow a downstream template engine to evaluate attacker-supplied expressions. The string output path is not affected.
Publish Date: 2026-07-23
URL: CVE-2026-65900
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: Required
- Scope: Changed
- Impact Metrics:
- Confidentiality Impact: Low
- Integrity Impact: Low
- Availability Impact: None
For more information on CVSS3 Scores, click here.Type: Upgrade version
Release Date: 2026-07-23
Fix Resolution: https://github.com/cure53/DOMPurify.git - 3.4.8
Step up your Open Source Security Game with Mend here