CVE-2023-23923: Moodle: possible to set the preferred "start page" of other users
First published: Thu Jan 19 2023(Updated: )
Insufficient limitations on the "start page" preference made it possible to set that preference for another user. Note that this was still limited to the pre-defined start page options. Versions affected: 4.1, 4.0 to 4.0.5, 3.11 to 3.11.11, 3.9 to 3.9.18 and earlier unsupported versions Versions fixed: 4.1.1, 4.0.6, 3.11.12 and 3.9.19
Credit: patrick@puiterwijk.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Moodle Moodle | >=3.9.0<3.9.19 | |
| Moodle Moodle | >=3.11.0<3.11.12 | |
| Moodle Moodle | >=4.0.0<4.0.6 | |
| Moodle Moodle | =4.1.0 | |
| redhat/moodle | <4.1.1 | 4.1.1 |
| redhat/moodle | <4.0.6 | 4.0.6 |
| redhat/moodle | <3.11.12 | 3.11.12 |
| redhat/moodle | <3.9.19 | 3.9.19 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-76862
- https://bugzilla.redhat.com/show_bug.cgi?id=2162549
- https://moodle.org/mod/forum/discuss.php?d=443274#p1782023
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2165642
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2165643
Frequently Asked Questions
What is CVE-2023-23923?
CVE-2023-23923 is a vulnerability found in Moodle that allows remote attackers to gain unauthorized access to restricted functionality.
How can a remote attacker exploit CVE-2023-23923?
A remote attacker can exploit CVE-2023-23923 by setting the 'start page' preference for another user.
Which versions of Moodle are affected by CVE-2023-23923?
Moodle versions 3.9.0 to 3.9.19, 3.11.0 to 3.11.12, and 4.0.0 to 4.0.6 are affected by CVE-2023-23923.
What is the severity rating of CVE-2023-23923?
CVE-2023-23923 has a severity rating of 8.2 (high).
How can I fix CVE-2023-23923?
To fix CVE-2023-23923, update Moodle to version 3.9.19, 3.11.12, or 4.0.6.
- collector/nvd-index
- agent/type
- agent/first-publish-date
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/weakness
- agent/remedy
- agent/references
- agent/title
- agent/severity
- agent/last-modified-date
- agent/author
- agent/description
- agent/event
- agent/tags
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2023-23923
- agent/software-canonical-lookup
- vendor/moodle
- canonical/moodle moodle
- version/moodle moodle/3.9.0
- version/moodle moodle/3.11.0
- version/moodle moodle/4.0.0
- version/moodle moodle/4.1.0
- package-manager/redhat