Description
classes/GoogleSpell.php in the PHP Spellchecker (aka Google Spellchecker) addon before 2.0.6.1 for TinyMCE, as used in Moodle 2.1.x before 2.1.10, 2.2.x before 2.2.7, 2.3.x before 2.3.4, and 2.4.x before 2.4.1 and other products, does not properly handle control characters, which allows remote attackers to trigger arbitrary outbound HTTP requests via a crafted string.
Remediation
References
Related Vulnerabilities
PostgreSQL Improper Input Validation Vulnerability (CVE-2012-3489)
WordPress Other Vulnerability (CVE-2007-3240)
MySQL CVE-2016-3424 Vulnerability (CVE-2016-3424)
Family Connections Permissions, Privileges, and Access Controls Vulnerability (CVE-2007-4338)
Python Uncontrolled Search Path Element Vulnerability (CVE-2020-15523)