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GoogleOSV:GHSA-JV4C-7JQQ-M34XHistoryMay 24, 2022 - 5:40 p.m.
CKEditor 4 ReDoS Vulnerability
2022-05-2417:40:21
Google
osv.dev
8
redos attack
ckeditor 4
vulnerability
styles input
dialogs plugin
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).
References
github.com/ckeditor/ckeditor4
github.com/ckeditor/ckeditor4/blob/major/CHANGES.md#ckeditor-416
nvd.nist.gov/vuln/detail/CVE-2021-26271
web.archive.org/web/20210128132707/https://ckeditor.com/blog/CKEditor-4.16-with-improved-image-pasting-High-Contrast-support-and-a-new-color-API/#security-comes-first
www.oracle.com//security-alerts/cpujul2021.html
www.oracle.com/security-alerts/cpuoct2021.html
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