CVE-2026-35196: Chamilo LMS is an open-source learning management system

Q: How do I fix CVE-2026-35196?

chamilo lms: upgrade to newer than 1.11.38. Exact commands for each OS are on this page.

Q: Is CVE-2026-35196 being exploited?

CVE-2026-35196 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-35196 affect?

CVE-2026-35196 affects chamilo lms. Severity is high (CVSS 8.8). Chamilo LMS is an open-source learning management system. In versions prior to 2.0.0-RC.3, an OS Command Injection vulnerability exists in the main/inc/ajax/gradebook.ajax.php endpoint within the export_all_certificates action, where the co

Q: How urgent is CVE-2026-35196?

Priority 55/100. High severity; Public exploit reference

This month

HIGH 8.8UPGRADE

CVE-2026-35196 is a high-severity flaw (CVSS 8.8) affecting chamilo lms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Chamilo LMS is an open-source learning management system. In versions prior to 2.0.0-RC.3, an OS Command Injection vulnerability exists in the main/inc/ajax/gradebook.ajax.php endpoint within the export_all_certificates action, where the course code retrieved from the session variable $_SESSION['_cid'] via api_get_course_id() is concatenated directly into a shell_exec() command string without sanitization or escaping using escapeshellarg(). If an

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	1.8% (top 22%)
CISA exploited list	No
Weakness	CWE-78
Published	2026-04-14
Last modified	2026-07-24

Publisher (CNA): GitHub, Inc. · Vendor: chamilo

Last updated 2026-07-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-14 22:16 UTCPublished CVE record published
2026-07-24 21:10 UTCUpdated Record last modified

chamilo chamilo lms UPGRADE

Affected: <= 1.11.38 · 2.0.0 alpha1 · 2.0.0 alpha2 · 2.0.0 alpha3 · 2.0.0 alpha4 · 2.0.0 alpha5 · 2.0.0 beta1 · 2.0.0 beta2

Fixed in: newer than 1.11.38

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy chamilo-lms || rpm -q chamilo-lms || chamilo-lms --version

2. UPGRADE to newer than 1.11.38 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade chamilo-lms

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade chamilo-lms

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Exact fixes by distribution

Fedora 46 · icecat · FIXED · 153.6.0-2.rh1.fc46 · FEDORA-2026-25e05b5320 · source

sudo dnf upgrade --advisory=FEDORA-2026-25e05b5320

Fedora ELN · edk2 · FIXED · 20260812-14.eln159 · FEDORA-2026-8850ef9153 · source

sudo dnf upgrade --advisory=FEDORA-2026-8850ef9153

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

GitHub PoC: kx00007/CVE-2026-35196 (0 stars)
Write-up: github.com/chamilo/chamilo-lms/security/advisories/GHSA-crc6-r6c7-44q3

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-35196?

chamilo lms: upgrade to newer than 1.11.38. Exact commands for each OS are on this page.

Is CVE-2026-35196 being exploited?

CVE-2026-35196 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-35196 affect?

CVE-2026-35196 affects chamilo lms. Severity is high (CVSS 8.8). Chamilo LMS is an open-source learning management system. In versions prior to 2.0.0-RC.3, an OS Command Injection vulnerability exists in the main/inc/ajax/gradebook.ajax.php endpoint within the export_all_certificates action, where the co

How urgent is CVE-2026-35196?

Priority 55/100. High severity; Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2026-32894 HIGH 7.1 UPGRADE Chamilo LMS is a learning management system
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CVE-2026-33702 HIGH 7.1 UPGRADE Chamilo LMS is a learning management system
CVE-2026-33736 MEDIUM 6.5 DOWNGRADE Chamilo LMS is a learning management system

References

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