CVE-2025-26791

Summary

DOMPurify before 3.2.4 has an incorrect template literal regular expression, sometimes leading to mutation cross-site scripting (mXSS).

Affected Software

Weaknesses

• CWE-79: CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: no
  • Technical Impact: partial

Additional References

• https://ensy.zip/posts/dompurify-323-bypass/

References

• https://github.com/cure53/DOMPurify/releases/tag/3.2.4
• https://github.com/cure53/DOMPurify/commit/d18ffcb554e0001748865da03ac75dd7829f0f02
• https://nsysean.github.io/posts/dompurify-323-bypass/
• https://ensy.zip/posts/dompurify-323-bypass/

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