Description
Joomla! Core is prone to a vulnerability that lets remote attackers inject arbitrary formulas into CSV files. Attackers can possibly exploit this issue to execute arbitrary commands on the victim's system, by the use of Microsoft Excel DDE function, or to leak data via maliciously injected hyperlinks. Joomla! Core versions 3.9.x ranging from 3.9.0 and up to and including 3.9.6 are vulnerable.
Remediation
Update to Joomla! Core version 3.9.7 or latest
References
Related Vulnerabilities
WordPress Plugin Let Them Unsubscribe Multiple Unspecified Vulnerabilities (1.0)
WordPress Plugin Alphabetic Pagination Security Bypass (3.0.7)
Roundcube Improper Input Validation Vulnerability (CVE-2011-1491)
WordPress 3.8.x Multiple Vulnerabilities (3.8 - 3.8.38)
WordPress Plugin Welcart e-Commerce Multiple SQL Injection Vulnerabilities (1.5.2)