Vulnerability in Moodle
CVE-2023-23923
The vulnerability was found Moodle which exists due to insufficient limitations on the "start page" preference. A remote attacker can set that preference for another user. The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N.
EPSS exploit prediction
EPSS: 0.010 (60.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 60.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000
Affected products
- Moodle — versions 4.1.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- git.moodle.org/gw (Patch)
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- moodle.org/mod/forum/discuss.php (Vendor Advisory)
Frequently asked questions
- What is CVE-2023-23923?
- CVE-2023-23923 is a high-severity vulnerability in Moodle, classified under Improper Access Control. CVSS score: 8.2/10. Published 2023-02-17.
- How severe is CVE-2023-23923?
- High severity. CVSS v3 base score is 8.2 out of 10.
- Is CVE-2023-23923 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.