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Threatist priority CRITICAL 0 HIGH 0 MEDIUM 0 LOW 1

Signals Exploited in the wild (KEV) 0 Patch available 1 No fix listed 0 Has CVE 1

Fix status Fixed 1 Partial 0 Will not fix 0 Deferred 0 No fix listed 0

Impact type Code execution 0 Privilege escalation 0 Security bypass 0 Information disclosure 0 Tampering 0 Denial of service 1 Spoofing 0 Cross-site scripting 0 SQL injection 0

Attack vector Network 1 Adjacent network 0 Local 0 Physical 0

Requirements No authentication 1 No user interaction 0

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Weakness (CWE) CWE-400 Uncontrolled Resource Consumption 1

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Vendor: ckeditor × Component: Ckeditor5-engine × Clear all filters

TI-2021-04490 CVE-2021-21391 · GHSA-3rh3-wfr4-76mj

Regular expression Denial of Service in multiple packages

Priority LOW 32

CKEditor 5 provides a WYSIWYG editing solution.

CVSS 3.1MEDIUM 6.5· Network · No auth · User interaction · EPSS 0.01667 · Published 2021-04-29 · Fixed in 27.0.0 CWE-400

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