Chamilo LMS CStudio upload flow allows unauthenticated remote code execution (CVE-2026-45140) | HOL Guard CVE

Critical · CVSS 9.8CVE-2026-45140GHSA-G4C3-4G96-6G4M

Chamilo LMS CStudio upload flow allows unauthenticated remote code execution

Answer in brief

CVE-2026-45140 records a Critical severity (CVSS 9.8) vulnerability in Chamilo LMS CStudio upload flow allows unauthenticated remote code execution. The current sources do not mark it as known exploited. The current feed maps chamilo/chamilo-lms (composer), chamilo/chamilo-lms (generic), chamilo/chamilo-lms (packagist). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 17, 2026Updated Sep 17, 2026Source checked Sep 17, 2026First seen by HOL Sep 17, 2026Material review Sep 17, 2026

Upstream Advisory

Key facts

Risk: Critical · CVSS 9.8
Exploitation: Not marked as known exploited
Affected software: 3 mapped packages or products
Fix availability: Available

Why this deserves its current priority

CVSS is 9.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps chamilo/chamilo-lms (composer), chamilo/chamilo-lms (generic), chamilo/chamilo-lms (packagist). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
chamilo/chamilo-lmscomposer	<=2.0.0	2.0.1
chamilo/chamilo-lmsgeneric	< 2.0.1	Not reported
chamilo/chamilo-lmspackagist	>=0 <2.0.1	2.0.1

Recommended response

Check inventory. Check lockfiles and deployed manifests for chamilo/chamilo-lms, chamilo/chamilo-lms, chamilo/chamilo-lms.
Review the reported fix. Update chamilo/chamilo-lms to 2.0.1; chamilo/chamilo-lms to 2.0.1 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 17, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.