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Fencer Intel
medium 4.3

CVE-2022-40208 json

Moodle may allow students to bypass sequential navigation during a quiz attempt

published 3y ago modified 2mo ago also BIT-moodle-2022-40208 , EUVD-2023-0958 , GHSA-948f-j464-rfj2

cvss
4.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 47%
public exploits
0
none known

Summary

In Moodle, insufficient limitations in some quiz web services made it possible for students to bypass sequential navigation during a quiz attempt.

Patch / fix

  • packagist moodle/moodle 3.9.16, 3.11.9, 4.0.3
  • bitnami moodle 3.9.16, 3.11.9, 4.0.3
  • moodle moodle 3.9.16, 3.11.9, 4.0.3

Is CVE-2022-40208 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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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-2022-40208 updated cvss 8.8

moodle: quiz sequential navigation bypass using web services

  • 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

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
last yr.

Exploit prediction

0.56% chance of exploitation in the next 30 days, higher than 47% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CISA ADP 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
GitHub 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
NVD 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
CNA 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
OSV 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Affected packages

ecosystem package affected fixed in
packagist moodle/moodle
>=4.0.0, <4.0.3
>=3.11.0, <3.11.9
<3.9.16
4.0.3
3.11.9
3.9.16
bitnami moodle
>=3.9.0, <3.9.16
>=3.11.0, <3.11.9
>=4.0.0, <4.0.3
3.9.16
3.11.9
4.0.3

Affected products

  • n/a Moodle

Classification

Weakness

References

Sources

Fencer Intel 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.