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Fencer Vulns
high 7.5

CVE-2020-25699 json

Privilage Escalation in moodle

published 2020-11-19 5 y ago modified 2026-09-08 2 mo ago also BIT-moodle-2020-25699 , EUVD-2021-0665 , GHSA-h77r-rp97-7rv4

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.6%
EPSS 1.6% chance of exploitation in 30 days, percentile 76%
public exploits
0
none known

Summary

In moodle, insufficient capability checks could lead to users with the ability to course restore adding additional capabilities to roles within that course. Versions affected: 3.9 to 3.9.2, 3.8 to 3.8.5, 3.7 to 3.7.8, 3.5 to 3.5.14 and earlier unsupported versions. This is fixed in moodle 3.9.3, 3.8.6, 3.7.9, 3.5.15, and 3.10.

Patch / fix

  • packagist moodle/moodle 3.5.15, 3.7.9, 3.8.6, 3.9.3
  • bitnami moodle 3.5.15, 3.7.9, 3.8.6, 3.9.3

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-25699 updated cvss 7.2

moodle: Privilege escalation within a course when restoring role overrides

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.61% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:P/A:N
OSV 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected packages

ecosystem package affected fixed in
packagist moodle/moodle
>=3.9.0, <3.9.3
>=3.8.0, <3.8.6
>=3.7.0, <3.7.9
>=3.5, <3.5.15
3.9.3
3.8.6
3.7.9
3.5.15
bitnami moodle
>=3.5.0, <3.5.15
>=3.7.0, <3.7.9
>=3.8.0, <3.8.6
>=3.9.0, <3.9.3
3.5.15
3.7.9
3.8.6
3.9.3

Affected products

  • n/a moodle

Classification

Weakness
  • CWE-863 Incorrect Authorization
  • CWE-269 Improper Privilege Management

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.