Description
It was found in Moodle before version 3.10.1, 3.9.4, 3.8.7 and 3.5.16 that messaging did not impose a character limit when sending messages, which could result in client-side (browser) denial of service for users receiving very large messages.
Remediation
References
Related Vulnerabilities
Oracle Database Server Other Vulnerability (CVE-2007-3856)
PHP Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (CVE-2010-2484)
WordPress Plugin Cookie Bar Cross-Site Scripting (1.8.8)
WordPress Plugin All-In-One Security (AIOS)-Security and Firewall SQL Injection (3.8.7)
WordPress Plugin Duplicate Page Multiple Vulnerabilities (2.3)