Vulnerability Details : CVE-2021-20184
It was found in Moodle before version 3.10.1, 3.9.4 and 3.8.7 that a insufficient capability checks in some grade related web services meant students were able to view other students grades.
Products affected by CVE-2021-20184
- cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
- cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-20184
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 21 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-20184
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.0
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:N/A:N |
8.0
|
2.9
|
NIST | |
|
4.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
2.8
|
1.4
|
NIST |
CWE ids for CVE-2021-20184
-
The product does not validate or incorrectly validates the integrity check values or "checksums" of a message. This may prevent it from detecting if the data has been modified or corrupted in transmission.Assigned by: secalert@redhat.com (Primary)
References for CVE-2021-20184
-
https://moodle.org/mod/forum/discuss.php?d=417167
Moodle.org: MSA-21-0002: Grade information disclosure in grade's external fetch functionsPatch;Vendor Advisory
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