---
cve: "CVE-2026-114390"
severity: "MEDIUM"
cvss: 6.9
epss: "0.2%"
vendor: "Chamilo"
kev: false
exploited: false
published: "2026-10-21 12:39:46"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-10-29T17:20:31+01:00"
---

# CVE-2026-114390

> 6.9 MEDIUM · 🧪 PoC

## Beschreibung

Chamilo LMS from 2.0.0-alpha.1 before 2.0.0-RC.3 contains a missing authorization vulnerability in legacy AJAX handlers under public/main/inc/ajax/ that exposes user names and certificates. Unauthenticated or low-privileged users can call actions like get_users_by_group_course, user_by_all_roles, and export_all_certificates to harvest user names and other learners' certificate PDFs.

## CNA-Record (Kanon, cvelistV5)

- CNA: **VulnCheck**
- State: PUBLISHED
- Stand: 2026-10-21 13:28:08
- CNA-CVSS: **6.9** (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N`)

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **none**
  - Automatable: **yes**
  - Technical Impact: **partial**

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Schwachstellen-Klasse

- **CWE-862** — Missing Authorization
  The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

## Angriffsmuster (CAPEC)

- [CAPEC-665 — Exploitation of Thunderbolt Protection Flaws](https://capec.mitre.org/data/definitions/665.html) _(Severity: Very High)_

## ATT&CK-Techniken

- [T1211 — Exploitation for Defensive Evasion](https://attack.mitre.org/techniques/T1211/)
- [T1542.002 — Pre-OS Boot: Component Firmware](https://attack.mitre.org/techniques/T1542/002/)
- [T1556 — Modify Authentication Process](https://attack.mitre.org/techniques/T1556/)

## Patch verfügbar (OSV)

- 612fdb12acbbff9f956a412d0af76e488d3419d6 (Commit)
- 2861afd4896ff898a950302f2c00f44726fa6f0a (Commit)

## Referenzen

- <https://github.com/chamilo/chamilo-lms/issues/7671>
- <https://github.com/chamilo/chamilo-lms/commit/2861afd4896ff898a950302f2c00f44726fa6f0a>
- <https://github.com/chamilo/chamilo-lms/releases/tag/v2.0.0-RC.3>
- <https://github.com/chamilo/chamilo-lms/blob/v2.0.0-RC.2/public/main/inc/ajax/course.ajax.php#L350-L426>
- <https://github.com/chamilo/chamilo-lms/blob/v2.0.0-RC.2/public/main/inc/ajax/usergroup.ajax.php#L17-L50>
- <https://github.com/chamilo/chamilo-lms/blob/v2.0.0-RC.2/public/main/inc/ajax/gradebook.ajax.php#L58-L99>
- <https://www.vulncheck.com/advisories/chamilo-lms-2.0.0-alpha.1-before-2.0.0-rc.3-missing-authorization-in-ajax-handlers>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2026-114390/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_