CVE-2025-26791

dompurify: Mutation XSS in DOMPurify Due to Improper Template Literal Handling

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Severity

Moderate

Red Hat Product Security

4.5

CVSS 3.1

Review impact separately from score.

Published · February 14, 2025

Updated · November 4, 2026

Description

A flaw was found in DOMPurify. This vulnerability allows attackers to execute mutation-based Cross-site scripting (mXSS) via an incorrect template literal regular expression.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 4.5
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N

CWE-79 · Improper Neutralization of Input During Web Page Generation