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
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MySQL CVE-2015-0438 Vulnerability (CVE-2015-0438)
WordPress 4.3.x Multiple Vulnerabilities (4.3 - 4.3.17)
Contao Improper Input Validation Vulnerability (CVE-2020-25768)
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