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CVE-2026-45140
Chamilo LMS CStudio upload flow allows unauthenticated remote code execution
Critical9.8EPSS 1.3%
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
Description
Chamilo LMS is an open-source learning management system. Prior to 2.0.1, Chamilo LMS allows an unauthenticated remote attacker to execute arbitrary code on the server. The authoritative advisory does not identify the affected endpoint, component, input, or exploitation mechanism. This issue is fixed in version 2.0.1.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Deferred | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 1.3% · top 29% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: total
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Weakness
- CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (opens in a new tab)All about CWE-22 and its CVEs
- CWE-94: Improper Control of Generation of Code ('Code Injection') (opens in a new tab)All about CWE-94 and its CVEs
- CWE-219: Storage of File with Sensitive Data Under Web Root (opens in a new tab)All about CWE-219 and its CVEs
- CWE-434: Unrestricted Upload of File with Dangerous Type (opens in a new tab)All about CWE-434 and its CVEs
Affected products
- affected < 2.0.1
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Packagistchamilo/chamilo-lmsGHSA-g4c3-4g96-6g4m (opens in a new tab)
References (3)
- https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-g4c3-4g96-6g4m (opens in a new tab)x_refsource_CONFIRM
- https://github.com/chamilo/chamilo-lms/commit/4bdba1b9a8820bd70c0809317775d7f6eaa79844 (opens in a new tab)x_refsource_MISC
- https://github.com/chamilo/chamilo-lms/releases/tag/v2.0.1 (opens in a new tab)x_refsource_MISC
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-g4c3-4g96-6g4m (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-45140)Record last updated .