Moodle Authentication Bypass in File Upload
Moodle 2.3.x before 2.3.1 uses only a client-side check for whether references are permitted in a file upload, which allows remote authenticated users to bypass intended alias (aka shortcut) restrictions via a client that omits this check.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | moodle/moodle | >= 2.3, < 2.3.1 | 2.3.1 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2012-3387
- https://github.com/moodle/moodle/commit/3b6629c088f14c6ee8f13a009ff27441d164f334
- https://github.com/moodle/moodle/commit/61a339e59857fd36080f4a468a16cd6a539d90bb
- https://exchange.xforce.ibmcloud.com/vulnerabilities/76954
- https://github.com/moodle/moodle
- https://web.archive.org/web/20121104220059/http://www.securityfocus.com/bid/54481
- http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-33948
- http://openwall.com/lists/oss-security/2012/07/17/1
- Weakness (CWE)
CWE-287- Platform
- Composer
- Package
moodle/moodle- Disclosed
- 13.05.2022
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-w66h-c2vj-cm7f - CC BY 4.0
Vulnerability history: moodle/moodle
All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 437
- First → latest
- 03.2021 02.2026
- Without a fix
- 10
- Exploited in attacks
- 0
Severity breakdown
- Critical 16
- High 68
- Medium 318
- Low 35
Disclosures per year
- 2021: 11
- 2022: 285
- 2023: 43
- 2024: 53
- 2025: 33
- 2026: 12
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Moodle Authentication Bypass in File Upload this entry
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