CVE-2023-28336: Moodle: teacher can access names of users they do not have permission to access
First published: Fri Mar 17 2023(Updated: )
Insufficient filtering of grade report history made it possible for teachers to access the names of users they could not otherwise access.
Credit: patrick@puiterwijk.org patrick@puiterwijk.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Moodle Moodle | >3.9.0<3.9.20 | |
| Moodle Moodle | >3.11.0<3.11.13 | |
| Moodle Moodle | >4.0.0<4.0.7 | |
| Moodle Moodle | =3.9.0 | |
| Moodle Moodle | =3.11.0 | |
| Moodle Moodle | =4.0.0 | |
| Moodle Moodle | =4.1.0 | |
| Moodle Moodle | =4.1.1 | |
| Fedoraproject Fedora | =36 | |
| redhat/moodle | <4.1.2 | 4.1.2 |
| redhat/moodle | <4.0.7 | 4.0.7 |
| redhat/moodle | <3.11.13 | 3.11.13 |
| redhat/moodle | <3.9.20 | 3.9.20 |
| composer/moodle/moodle | <3.9.20 | 3.9.20 |
| composer/moodle/moodle | >=3.11.0<3.11.13 | 3.11.13 |
| composer/moodle/moodle | >=4.0.0<4.0.7 | 4.0.7 |
| composer/moodle/moodle | >=4.1.0<4.1.2 | 4.1.2 |
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Reference Links
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3QZN34VSF4HTCW3C3ZP2OZYSLYUKADPF/
- https://moodle.org/mod/forum/discuss.php?d=445068
- https://bugzilla.redhat.com/show_bug.cgi?id=2179426
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3QZN34VSF4HTCW3C3ZP2OZYSLYUKADPF/
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2180093
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2180092
- https://nvd.nist.gov/vuln/detail/CVE-2023-28336
- https://github.com/moodle/moodle/commit/a931a7f8cec3657827268837b27962a13817ca2b
- https://git.moodle.org/gw?p=moodle.git;a=commit;h=a931a7f8cec3657827268837b27962a13817ca2b
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3QZN34VSF4HTCW3C3ZP2OZYSLYUKADPF
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3QZN34VSF4HTCW3C3ZP2OZYSLYUKADPF
- https://github.com/advisories/GHSA-prjm-2fj2-787f (Advisory)
Frequently Asked Questions
What is CVE-2023-28336?
CVE-2023-28336 is a vulnerability in Moodle that allows teachers to access the names of users they should not have access to.
How severe is CVE-2023-28336?
CVE-2023-28336 has a severity rating of 4.3, which is considered medium.
Which versions of Moodle are affected by CVE-2023-28336?
CVE-2023-28336 affects Moodle versions 3.9.0 to 3.9.20, 3.11.0 to 3.11.13, 4.0.0 to 4.0.7, 4.1.0, and 4.1.1.
How can I fix CVE-2023-28336?
To fix CVE-2023-28336, it is recommended to upgrade Moodle to a version that includes the necessary security patches.
Where can I find more information about CVE-2023-28336?
More information about CVE-2023-28336 can be found at the following references: [Reference 1](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3QZN34VSF4HTCW3C3ZP2OZYSLYUKADPF/) and [Reference 2](https://moodle.org/mod/forum/discuss.php?d=445068).
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