CVE-2026-0540

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-0540
DOMPurify 3.1.3 through 3.3.1 and 2.5.3 through 2.5.8, fixed in commit 729097f, 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.

6.1 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References
Link Resource
https://github.com/cure53/DOMPurify Product
https://github.com/cure53/DOMPurify/commit/fca0a938b4261ddc9c0293a289935a9029c049f5 Patch
https://www.vulncheck.com/advisories/dompurify-xss-via-missing-rawtext-elements-in-safe-for-xml Third Party Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:cure53:dompurify:*:*:*:*:*:*:*:*
cpe:2.3:a:cure53:dompurify:*:*:*:*:*:*:*:*
History

05 Mar 2026, 00:03

Type Values Removed Values Added
References () https://github.com/cure53/DOMPurify - () https://github.com/cure53/DOMPurify - Product
References () https://github.com/cure53/DOMPurify/commit/fca0a938b4261ddc9c0293a289935a9029c049f5 - () https://github.com/cure53/DOMPurify/commit/fca0a938b4261ddc9c0293a289935a9029c049f5 - Patch
References () https://www.vulncheck.com/advisories/dompurify-xss-via-missing-rawtext-elements-in-safe-for-xml - () https://www.vulncheck.com/advisories/dompurify-xss-via-missing-rawtext-elements-in-safe-for-xml - Third Party Advisory
First Time Cure53
Cure53 dompurify
CPE cpe:2.3:a:cure53:dompurify:*:*:*:*:*:*:*:*

03 Mar 2026, 20:16

Type Values Removed Values Added
References
  • {'url': 'https://www.vulncheck.com/advisories/dompurify-xss-via-missing-rawtext-elements-in-safeforxml', 'source': 'disclosure@vulncheck.com'}
  • () https://www.vulncheck.com/advisories/dompurify-xss-via-missing-rawtext-elements-in-safe-for-xml -

03 Mar 2026, 18:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-03-03 18:16

Updated : 2026-03-05 00:03

NVD link : CVE-2026-0540

Mitre link : CVE-2026-0540

CVE.ORG link : CVE-2026-0540

JSON object : View

Products Affected

cure53

  • dompurify
CWE
CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')