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CVE-2023-4226
Chamilo LMS File Upload Functionality Remote Code Execution
High8.8EPSS 2.5%
- Published
- Updated
- Reserved
- Assigned by
- STAR_Labs
Description
Unrestricted file upload in `/main/inc/ajax/work.ajax.php` in Chamilo LMS <= v1.11.24 allows authenticated attackers with learner role to obtain remote code execution via uploading of PHP files.
Timeline
ID reserved
By STAR_Labs
- 4 months later
· 4 months later
Published
- 8 months later
· 8 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| STAR_LabsCNA (assigner) | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 2.5% · top 16% of all CVEs (7 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.
Weakness
Affected products
References (5)
- https://support.chamilo.org/projects/chamilo-18/wiki/security_issues#Issue-129-2023-09-04-Critical-impact-Moderate-risk-Authenticated-users-may-gain-unauthenticated-RCE-CVE-2023-4223CVE-2023-4224CVE-2023-4225CVE-2023-4226 (opens in a new tab)vendor-advisoryx_transferred
- https://starlabs.sg/advisories/23/23-4226 (opens in a new tab)third-party-advisoryx_transferred
- https://github.com/chamilo/chamilo-lms/commit/6f32625a012d5de2dfe8edbccb4ed14a85e310d4 (opens in a new tab)patchx_transferred
- https://github.com/chamilo/chamilo-lms/commit/f3d62b65ad60d68096c2674d5695339f04de0b8a (opens in a new tab)patchx_transferred
- https://github.com/chamilo/chamilo-lms/commit/e864127a440c2cab0eb62c113a04e2e904543a1f (opens in a new tab)patchx_transferred
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 Advisories (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-2023-4226)Record last updated .