XSS in Chamilo
CVE-2023-4220
Unrestricted file upload in big file upload functionality in `/main/inc/lib/javascript/bigupload/inc/bigUpload.php` in Chamilo LMS <= v1.11.24 allows unauthenticated attackers to perform stored cross-site scripting attacks and obtain remote code execution via uploading of web shell.
Vulnerability class: Unrestricted File Upload
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.761 (99.5th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.761 · newest: 0.761 · change: 0.000
Affected products
- Chamilo — versions 0
- Chamilo Lms
Weakness classification (CWE)
Public proof-of-concept exploits
- Rai2en/CVE-2023-4220-Chamilo-LMS
- Ziad-Sakr/Chamilo-CVE-2023-4220-Exploit
- thefizzyfish/CVE-2023-4220_Chamilo_RCE
- zora-beep/CVE-2023-4220
- Pr1or95/CVE-2023-4220-exploit
- oxapavan/CVE-2023-4220-HTB-PermX
- bueno-armando/CVE-2023-4220-RCE
- 0x00-null/Chamilo-CVE-2023-4220-RCE-Exploit
- N1ghtfallXxX/CVE-2023-4220
- charlesgargasson/CVE-2023-4220
References
- support.chamilo.org/projects/chamilo-18/wiki/security_issues (vendor-advisory, Issue Tracking, Vendor Advisory)
- starlabs.sg/advisories/23/23-4220 (Exploit, Third Party Advisory, third-party-advisory)
- github.com/chamilo/chamilo-lms/commit/3b487a55076fb06f96809b790a35dcdd42f8ec49 (Patch, patch)
Frequently asked questions
- What is CVE-2023-4220?
- CVE-2023-4220 is a high-severity vulnerability in Chamilo, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.1/10. Published 2023-11-28.
- How severe is CVE-2023-4220?
- High severity. CVSS v3 base score is 8.1 out of 10.
- Is CVE-2023-4220 known to be exploited?
- 46 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.