user/index.php in Moodle through 2.6.11, 2.7.x before 2.7.13, 2.8.x before 2.8.11, 2.9.x before 2.9.5, and 3.0.x before 3.0.3 grants excessive authorization on the basis of the moodle/course:viewhiddenuserfields capability, which allows remote authenticated users to discover student e-mail addresses by leveraging the teacher role and reading a Participants list.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Freebsd | — | Upgrade moodle28Upgrade moodle30Upgrade moodle29 | Dec 10, 2025 | Apr 3, 2016 |
| Moodle | — | Upgrade to the latest version of Moodle | Apr 19, 2017 | May 22, 2016 |
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