Improper authorization in Moodle
Priority LOW 21CWE-285Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub. Impact type from CWE-285.
Summary
In Moodle, insufficient limitations in some quiz web services made it possible for students to bypass sequential navigation during a quiz attempt.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00563 47th percentileScored 2026-11-07
Fix Fixed moodle/moodle (Packagist): 4.0.3, 3.11.9, 3.9.16
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Moodle | affected 4.0 to 4.0.2, 3.11 to 3.11.8, 3.9 to 3.9.15 and earlier unsupported versions | — | No fix listed | CNA |
| — | moodle/moodle (Packagist) | 4.0.0 to before 4.0.3 | 4.0.3 | Patch available | GHSA-948f-j464-rfj2 |
| — | moodle/moodle (Packagist) | 3.11.0 to before 3.11.9 | 3.11.9 | Patch available | GHSA-948f-j464-rfj2 |
| — | moodle/moodle (Packagist) | before 3.9.16 | 3.9.16 | Patch available | GHSA-948f-j464-rfj2 |
- Moodle Vendor— Affected affected 4.0 to 4.0.2, 3.11 to 3.11.8, 3.9 to 3.9.15 and earlier unsupported versions Fixed in — No fix listed CNA
- moodle/moodle (Packagist) Vendor— Affected 4.0.0 to before 4.0.3 Fixed in 4.0.3 Patch available GHSA-948f-j464-rfj2
- moodle/moodle (Packagist) Vendor— Affected 3.11.0 to before 3.11.9 Fixed in 3.11.9 Patch available GHSA-948f-j464-rfj2
- moodle/moodle (Packagist) Vendor— Affected before 3.9.16 Fixed in 3.9.16 Patch available GHSA-948f-j464-rfj2
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:* | after 3.9.0, before 3.9.16; after 3.11.0, before 3.11.9; after 4.0.0, before 4.0.3 | Vulnerable | Moodle |
| cpe:2.3:a:moodle:moodle:3.9.0:-:*:*:*:*:*:* | 3.9.0 | Vulnerable | Moodle |
| cpe:2.3:a:moodle:moodle:3.11.0:-:*:*:*:*:*:* | 3.11.0 | Vulnerable | Moodle |
| cpe:2.3:a:moodle:moodle:4.0.0:-:*:*:*:*:*:* | 4.0.0 | Vulnerable | Moodle |
- cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:* Versions after 3.9.0, before 3.9.16; after 3.11.0, before 3.11.9; after 4.0.0, before 4.0.3 Vulnerable ·Moodle
- cpe:2.3:a:moodle:moodle:3.9.0:-:*:*:*:*:*:* Versions 3.9.0 Vulnerable ·Moodle
- cpe:2.3:a:moodle:moodle:3.11.0:-:*:*:*:*:*:* Versions 3.11.0 Vulnerable ·Moodle
- cpe:2.3:a:moodle:moodle:4.0.0:-:*:*:*:*:*:* Versions 4.0.0 Vulnerable ·Moodle
Remediation
- Fix · GHSA-948f-j464-rfj2 moodle/moodle (Packagist) Fixed in 4.0.3 Advisory →
- Fix · GHSA-948f-j464-rfj2 moodle/moodle (Packagist) Fixed in 3.11.9 Advisory →
- Fix · GHSA-948f-j464-rfj2 moodle/moodle (Packagist) Fixed in 3.9.16 Advisory →
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2022-40208
- 2026-10-03 Alias added: GHSA-948f-j464-rfj2
References
More Moodle vulnerabilities
- TI-2024-22468 moodle: unsafe direct use of $_SERVER['HTTP_REFERER'] in admin/tool/mfa/index.php CVSS 3.1CRITICAL 9.8
- TI-2021-14741 In Moodle, an SQL injection risk was identified in the library fetching a user's recent courses. CVSS 3.1CRITICAL 9.8
- TI-2024-29071 Moodle: remote code execution via calculated question types CVSS 3.1HIGH 8.1
- TI-2016-06653 Moodle 3.1.2 allows remote attackers to obtain sensitive information via unspecified… CVSS 3.1HIGH 7.5
- TI-2022-00259 SQL injection in moodle CVSS 3.1CRITICAL 9.8
- TI-2022-16116 Path traversal in Moodle CVSS 3.1HIGH 7.5
Sources
- CVE-2022-40208 · CVE Program
- CVE-2022-40208 · NVD
- FIRST EPSS
- GHSA-948f-j464-rfj2 · GitHub Advisory Database · CC BY 4.0
- CVE-2022-40208 · Red Hat security data · CC BY 4.0
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