What is CVE-2023-34944?

CVE-2023-34944 is a critical-severity vulnerability in Chamilo Lms, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2023-06-13.

How severe is CVE-2023-34944?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2023-34944 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Arbitrary file upload in Chamilo Lms

CVE-2023-34944

An arbitrary file upload vulnerability in the /fileUpload.lib.php component of Chamilo 1.11.* up to v1.11.18 allows attackers to execute arbitrary code via uploading a crafted SVG file.

Vulnerability class: Unrestricted File Upload

Published 2023-06-13 · last modified 2026-07-09.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.011 (63.4th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 63.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Chamilo Lms

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

Public proof-of-concept exploits

msegoviag/msegoviag

References

af854a3a-2127-422b-91ae-364da2661108 (Product)
github.com/chamilo/chamilo-lms/commit/0d0c88c4806280ac9b70a299d6e3099269c9bc54 (Patch)
github.com/chamilo/chamilo-lms/commit/f6e83550c2d17fc93a65ec4be602a78312289f37 (Patch)
support.chamilo.org/projects/chamilo-18/wiki/Security_issues (Vendor Advisory)

Frequently asked questions

What is CVE-2023-34944?: CVE-2023-34944 is a critical-severity vulnerability in Chamilo Lms, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2023-06-13.
How severe is CVE-2023-34944?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2023-34944 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.