#VU61427 Incorrect Regular Expression in CKEditor

Published: 2022-03-17

Vulnerability identifier: #VU61427

Vulnerability risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-24729


Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Web applications / JS libraries

Vendor: CKSource


The vulnerability allows a remote attacker to perform regular expression denial of service attack.

The vulnerability exists due to improper input validation in CKEditor 4 dialog plugin. A remote attacker can pass specially crafted input to the application and perform regular expression denial of service (ReDoS) attack.

Install updates from vendor's website.

Vulnerable software versions

CKEditor: 4.0 basic - 4.17.2

External links

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

Latest bulletins with this vulnerability