4.3

CVE-2021-20184: moodle

CVSS: 4.3v3.1MediumModified
AliasesUBUNTU-CVE-2021-20184
Published 28-01-2021Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-20184 is a medium (CVSS 4.3) vulnerability in moodle. EPSS estimates a 0.72% chance of exploitation in the next 30 days, higher than 53% of scored vulnerabilities.

Overall risk
17/100
0100
Low · default modelHow is this calculated?
CVSS score
4.3/10
010
Medium · v3.1 (NVD)
EPSS score
0.72%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 28-01-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.72%

Chance of exploitation in the next 30 days

Percentile

53%

Versus all other CVEs

30-day change

0.00 pp

From 0.72% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.72%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Moodle1 product
  • moodle< 3.8.7 | ≥ 3.9.0, < 3.9.4 | ≥ 3.10.0, < 3.10.1
Ubuntu1 product
  • moodleAll versions (No fix recorded)

2 vendors · 2 products

References

3 links