CVE-2023-3368
CriticalExploitedCommand injection in /main/webservices/additional_webservices.php in Chamilo LMS <= v1.11.20 allows unauthenticated attackers to obtain remote code execution via improper neutralisation of special characters.
Published Nov 28, 2023 · Updated Aug 12, 2026
Key Facts
Patch immediately- CVE-2023-3368 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Chamilo.
- It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Nov 28, 2023. No public exploit code is known.
- EPSS estimates a 70% probability of exploitation in the next 30 days.
- Fixed versions are available, including Chamilo 1.11.20.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
70%
Higher than 99.3% of all scored CVEs
Exploited in the wild
Yes
2 catalog listings
Public exploit code
None known
Get the full CVE-2023-3368 brief as a PDF
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Description
Command injection in /main/webservices/additional_webservices.php in Chamilo LMS <= v1.11.20 allows unauthenticated attackers to obtain remote code execution via improper neutralisation of special characters. This is a bypass of CVE-2023-34960.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Sep 18, 2024 | n/a | Not reported |
| CIRCL KEV | Nov 28, 2023 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Affected Products
2 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| ChamiloChamilo | See advisory | 1.11.20 |
Patched Releases
Chamilo
1.11.20
Timeline
Publicly disclosed
Nov 28, 2023
Added to CIRCL KEV
Nov 28, 2023
Added to Industry KEV feed
Sep 18, 2024
Last updated
Aug 12, 2026
Weakness Type
- CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
References
- advisoryhttps://github.com/CVEProject/cvelistV5/tree/main/cves/2023/3xxx/CVE-2023-3368.json
- advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2023-3368
- advisoryhttps://support.chamilo.org/projects/chamilo-18/wiki/security_issues#Issue-121-2023-07-05-Critical-impact-High-risk-Unauthenticated-Command-Injection-CVE-2023-3368
- patchhttps://github.com/chamilo/chamilo-lms/commit/37be9ce7243a30259047dd4517c48ff8b21d657a
- patchhttps://https://github.com/chamilo/chamilo-lms/commit/4c69b294f927db62092e01b70ac9bd6e32d5b48b
FAQ
Common Questions.
Command injection in /main/webservices/additional_webservices.php in Chamilo LMS <= v1.11.20 allows unauthenticated attackers to obtain remote code execution via improper neutralisation of special characters.
Affected: Chamilo. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Nov 28, 2023.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including Chamilo 1.11.20.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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