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Fencer Vulns
critical 9.8

CVE-2026-45140 json

Chamilo LMS CStudio upload flow allows unauthenticated remote code execution

published 2026-09-17 52 d ago modified 2026-09-24 45 d ago also GHSA-g4c3-4g96-6g4m , EUVD-2026-82420

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.3%
EPSS 1.3% chance of exploitation in 30 days, percentile 71%
public exploits
0
none known

Summary

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.

Patch / fix

  • packagist chamilo/chamilo-lms 2.0.1

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
51 d ago

Exploit prediction

1.33% chance of exploitation in the next 30 days, higher than 71% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
GitHub 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
packagist chamilo/chamilo-lms
<2.0.1
2.0.1

Affected products

  • chamilo chamilo-lms

Classification

Weakness
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory
  • CWE-94 Improper Control of Generation of Code
  • CWE-219 Storage of File with Sensitive Data Under Web Root
  • CWE-434 Unrestricted Upload of File with Dangerous Type

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.