Moderate
CVE-2023-29489
CVE-2023-29489
Description
An issue was discovered in cPanel before 11.109.9999.116. XSS can occur on the cpsrvd error page via an invalid webcall ID, aka SEC-669. The fixed versions are 11.109.9999.116, 11.108.0.13, 11.106.0.18, and 11.102.0.31.
Add Assessment
Technical Analysis
A cross-site scripting vulnerability was identified in Cpanel with the ability to be exploited without requiring authentication. Furthermore, the XSS vulnerability remains exploitable, even if the cPanel management ports (2080, 2082, 2083, 2086) are not exposed externally. This implies that if your website is managed through cPanel, it may be vulnerable to cross-site scripting on ports 80 and 443.
This vulnerability’s allows us to execute arbitrary JavaScript without the need for authentication on nearly all webserver ports when using cPanel in its default configuration. Even on ports 80 and 443, one can access the /cpanelwebcall/ directory since it is being proxied to the cPanel management ports by Apache.
Consequently, an attacker can not only target the cPanel management ports but also the applications running on ports 80 and 443.
CVSS V3 Severity and Metrics
General Information
Vendors
- cpanel
Products
- cpanel
References
Exploit
A PoC added here by the AKB Worker must have at least 2 GitHub stars.
