Description
The TeX filter in Moodle 1.6 before 1.6.9+, 1.7 before 1.7.7+, 1.8 before 1.8.9, and 1.9 before 1.9.5 allows user-assisted attackers to read arbitrary files via an input command in a "$$" sequence, which causes LaTeX to include the contents of the file.
Remediation
References
Related Vulnerabilities
MySQL CVE-2020-14769 Vulnerability (CVE-2020-14769)
MySQL CVE-2019-2797 Vulnerability (CVE-2019-2797)
Drupal Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (CVE-2016-6212)
Moodle Missing Authorization Vulnerability (CVE-2019-14883)
MediaWiki Improper Encoding or Escaping of Output Vulnerability (CVE-2020-10960)