Auth bypass in Moodle
CVE-2019-3848
A vulnerability was found in moodle before versions 3.6.3, 3.5.5 and 3.4.8. Permissions were not correctly checked before loading event information into the calendar's edit event modal popup, so logged in non-guest users could view unauthorised calendar events. (Note: It was read-only access, users could not edit the events.)
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.009 (58.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 58.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
- Moodle
- [Unknown] Moodle — versions 3.6.3, 3.5.5, 3.4.8
Weakness classification (CWE)
Public proof-of-concept exploits
References
- moodle.org/mod/forum/discuss.php (Patch, Vendor Advisory)
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2019-3848?
- CVE-2019-3848 is a medium-severity vulnerability in Moodle, classified under Incorrect Authorization. CVSS score: 4.3/10. Published 2019-03-26.
- How severe is CVE-2019-3848?
- Medium severity. CVSS v3 base score is 4.3 out of 10.
- Is CVE-2019-3848 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.