CVE-2021-26271

MediumCVSS 6.5/10Last modified Aug 25, 2026

Description

It was possible to execute a ReDoS-type attack inside CKEditor 4 before 4.16 by persuading a victim to paste crafted text into the Styles input of specific dialogs (in the Advanced Tab for Dialogs plugin).

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-829

Affected software

No affected versions have been published.

Timeline

Published: Jan 26, 2021
Last modified: Aug 25, 2026
NVD status: Modified

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