Description
The wiki subsystem in Moodle through 2.3.11, 2.4.x before 2.4.9, 2.5.x before 2.5.5, and 2.6.x before 2.6.2 does not properly restrict (1) view and (2) edit access, which allows remote authenticated users to perform wiki operations by leveraging the student role and using the Recent Activity block to reach the individual wiki of an arbitrary student.
Remediation
References
Related Vulnerabilities
Moodle Cross-Site Request Forgery (CSRF) Vulnerability (CVE-2019-10186)
Internet Information Services Other Vulnerability (CVE-2002-1180)
Oracle HTTP Server Other Vulnerability (CVE-1999-1068)
MySQL CVE-2019-2632 Vulnerability (CVE-2019-2632)
WordPress Plugin EWWW Image Optimizer Cross-Site Scripting (2.0.1)