01 Record
CVE-2023-4220
Chamilo LMS Unauthenticated Big Upload File Remote Code Execution
HighPUBLISHEDCNA: STAR_Labs
CNA base score8.1 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
02 Description
Chamilo LMS Unauthenticated Big Upload File Remote Code Execution
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 76.08% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 99.4% of scored records. A rank, not a probability.
- NVD base score
- 6.1 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2023-11-28 07:11Z2 YR AGO
- Last updated
- 2024-08-02 07:17Z2 YR AGO
- Reserved
- 2023-08-08
- Assigning CNA
- STAR_Labs
- Record state
- PUBLISHED
- Severity
- High (CVSS 8.1)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- Data version
- 5.1
- Document digest
- 59af8bba7c7485ace1eea62684da643ce1ad5c08209e8ccb20bb975243345301
05 Affected products
VendorProductVersionsPlatforms
06 References
- support.chamilo.orghttps://support.chamilo.org/projects/chamilo-18/wiki/security_issues#Issue-130-2023-09-04-Critical-impact-High-risk-Unauthenticated-users-may-gain-XSS-and-unauthenticated-RCE-CVE-2023-4220
- starlabs.sghttps://starlabs.sg/advisories/23/23-4220
- github.comhttps://github.com/chamilo/chamilo-lms/commit/3b487a55076fb06f96809b790a35dcdd42f8ec49