Vulnerability in Chamilo
CVE-2023-3545
Improper sanitisation in `main/inc/lib/fileUpload.lib.php` in Chamilo LMS <= v1.11.20 on Windows and Apache installations allows unauthenticated attackers to bypass file upload security protections and obtain remote code execution via uploading of `.htaccess` file. This vulnerability may be exploited by privileged attackers or chained with unauthenticated arbitrary file write vulnerabilities, such as CVE-2023-3533, to achieve remote code execution.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.024 (83.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 83.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.024 · newest: 0.024 · change: 0.000
Affected products
- Chamilo — versions 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- support.chamilo.org/projects/chamilo-18/wiki/security_issues (vendor-advisory, Issue Tracking, Vendor Advisory)
- starlabs.sg/advisories/23/23-3545/ (Exploit, Third Party Advisory, third-party-advisory)
- github.com/chamilo/chamilo-lms/commit/dc7bfce429fbd843a95a57c184b6992c4d709549 (Patch, patch)
Frequently asked questions
- What is CVE-2023-3545?
- CVE-2023-3545 is a critical-severity vulnerability in Chamilo, classified under Improper Handling of Case Sensitivity. CVSS score: 9.8/10. Published 2023-11-28.
- How severe is CVE-2023-3545?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2023-3545 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.