#VU55818 Cross-site scripting in CKEditor


Published: 2021-08-12

Vulnerability identifier: #VU55818

Vulnerability risk: Low

CVSSv3.1:

CVE-ID: N/A

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
CKEditor
Web applications / JS libraries

Vendor: CKSource

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in Widget plugin. A remote attacker can inject and execute arbitrary JavaScript code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

CKEditor: 4.0 basic - 4.16.1


CPE

External links
http://ckeditor.com/blog/ckeditor-4.16.2-with-browser-improvements-and-security-fixes/


Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?


Latest bulletins with this vulnerability