CVE-2026-0540

ADVISORY - github

Summary

DOMPurify 3.1.3 through 3.3.1 and 2.5.3 through 2.5.8, fixed in 2.5.9 and 3.3.2, 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.

EPSS Score⁠: 0.00029 (0.079)

Common Weakness Enumeration (CWE)

ADVISORY - nist

CWE-79⁠

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

ADVISORY - github

CWE-79⁠

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

ADVISORY - redhat

CWE-79⁠

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

Impacted images

Advisories

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