Main Vulnerability Database Vulnerabilities #VU86223

Cross-site scripting in CKEditor - CVE-2023-4771

Published: February 7, 2024 / Updated: September 6, 2024

Vulnerability identifier: #VU86223

CSH Severity: Low

CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]

CVE-ID: CVE-2023-4771

CWE-ID: CWE-79

Exploitation vector: Remote access

Exploit availability: Public exploit is available

Vulnerability details

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 the AJAX sample available at the samples/old/ajax.html file location. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script 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.

Affected software

CKEditor
IBM Sterling B2B Integrator
Engineering Lifecycle Management - Jazz Foundation

How to mitigate CVE-2023-4771

Install updates from vendor's website.

CKEditor - update to 4.24.0
IBM Sterling B2B Integrator - addressed in versions 6.1.2.6, 6.2.0.3
Engineering Lifecycle Management - Jazz Foundation - addressed in versions 7.0.2 iFix035, 7.0.3 iFix017, 7.1.0 iFix004

Links to Public Exploits and PoC-codes

Exploit #10496 - CVE-2023-4771 (CVE-2023-4771 PoC CKEditor 4 Cross-site scripting (XSS) vulnerability in AJAX sample) (September 6, 2024)

External References

https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-wh5w-82f3-wrxh