CVE-2021-20281
MEDIUMCVSS 5.3/10EPSS 1.31%
Last modified
CVE-2021-20281 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. It was possible for some users without permission to view other users' full names to do so via the online users block in moodle before 3.10.2, 3.9.5, 3.8.8, 3.5.17.. EPSS estimates a 1.31% chance of exploitation in the next 30 days.
Description
It was possible for some users without permission to view other users' full names to do so via the online users block in moodle before 3.10.2, 3.9.5, 3.8.8, 3.5.17.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Moodle | Moodle | >= 3.5.0, < 3.5.17 |
| Moodle | Moodle | >= 3.8.0, < 3.8.8 |
| Moodle | Moodle | >= 3.9.0, < 3.9.5 |
| Moodle | Moodle | >= 3.10.0, < 3.10.2 |
| Fedoraproject | Fedora | 32 |
| Fedoraproject | Fedora | 34 |
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1939041Issue Tracking, Third Party Advisory
- https://moodle.org/mod/forum/discuss.php?d=419652Patch, Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1939041Issue Tracking, Third Party Advisory
- https://moodle.org/mod/forum/discuss.php?d=419652Patch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-20281?
It was possible for some users without permission to view other users' full names to do so via the online users block in moodle before 3.10.2, 3.9.5, 3.8.8, 3.5.17.
How severe is CVE-2021-20281?
CVE-2021-20281 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 1.31% probability of exploitation in the next 30 days.
How do I fix CVE-2021-20281?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2021-20281?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST