Improper input validation in Moodle 3.x unknown
Priority LOW 39CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and GitHub.
Summary
An issue was discovered in Moodle 3.x. By substituting URLs in portfolios, users can instantiate any class. This can also be exploited by users who are logged in as guests to create a DDoS attack.
Why it matters now
EPSS 0.01708 77th percentileScored 2026-11-07
Fix Fixed moodle/moodle (Packagist): 3.1.12, 3.2.9, 3.3.6 +1
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Moodle 3.x unknown | Moodle 3.x unknown | — | No fix listed | CNA |
| — | moodle/moodle (Packagist) | 3.1 to before 3.1.12 | 3.1.12 | Patch available | GHSA-vxqh-mx28-7ghw |
| — | moodle/moodle (Packagist) | 3.2 to before 3.2.9 | 3.2.9 | Patch available | GHSA-vxqh-mx28-7ghw |
| — | moodle/moodle (Packagist) | 3.3 to before 3.3.6 | 3.3.6 | Patch available | GHSA-vxqh-mx28-7ghw |
| — | moodle/moodle (Packagist) | 3.4 to before 3.4.3 | 3.4.3 | Patch available | GHSA-vxqh-mx28-7ghw |
- Moodle 3.x unknown Vendor— Affected Moodle 3.x unknown Fixed in — No fix listed CNA
- moodle/moodle (Packagist) Vendor— Affected 3.1 to before 3.1.12 Fixed in 3.1.12 Patch available GHSA-vxqh-mx28-7ghw
- moodle/moodle (Packagist) Vendor— Affected 3.2 to before 3.2.9 Fixed in 3.2.9 Patch available GHSA-vxqh-mx28-7ghw
- moodle/moodle (Packagist) Vendor— Affected 3.3 to before 3.3.6 Fixed in 3.3.6 Patch available GHSA-vxqh-mx28-7ghw
- moodle/moodle (Packagist) Vendor— Affected 3.4 to before 3.4.3 Fixed in 3.4.3 Patch available GHSA-vxqh-mx28-7ghw
Remediation
- Fix · GHSA-vxqh-mx28-7ghw moodle/moodle (Packagist) Fixed in 3.1.12 Advisory →
- Fix · GHSA-vxqh-mx28-7ghw moodle/moodle (Packagist) Fixed in 3.2.9 Advisory →
- Fix · GHSA-vxqh-mx28-7ghw moodle/moodle (Packagist) Fixed in 3.3.6 Advisory →
- Fix · GHSA-vxqh-mx28-7ghw moodle/moodle (Packagist) Fixed in 3.4.3 Advisory →
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2018-1137
- 2026-10-03 Alias added: GHSA-vxqh-mx28-7ghw
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-2018-1137 · CVE Program
- CVE-2018-1137 · NVD
- FIRST EPSS
- GHSA-vxqh-mx28-7ghw · GitHub Advisory Database · CC BY 4.0
- CVE-2018-1137 · Red Hat security data · CC BY 4.0
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