Arbitrary file upload in Cyber-Iii Student-Management-System
CVE-2026-5670
A vulnerability was found in Cyber-III Student-Management-System up to 1a938fa61e9f735078e9b291d2e6215b4942af3f. This issue affects the function move_uploaded_file of the file /AssignmentSection/submission/upload.php. Performing a manipulation of the argument File results in unrestricted upload. The attack can be initiated remotely. The exploit has been made public and could be used. Continious delivery with rolling releases is used by this product. Therefore, no version details of affected nor updated releases are available. The project was informed of the problem early through an issue report but has not responded yet.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.003 (25.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 25.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001
Affected products
- Cyber-Iii Student-Management-System — versions 1a938fa61e9f735078e9b291d2e6215b4942af3f
Weakness classification (CWE)
References
- vuldb.com/vuln/355492 (technical-description, vdb-entry)
- vuldb.com/vuln/355492/cti (signature, permissions-required)
- vuldb.com/submit/786022 (third-party-advisory)
- github.com/Cyber-III/Student-Management-System/issues/241 (issue-tracking, exploit)
- github.com/Cyber-III/Student-Management-System/ (product)
Frequently asked questions
- What is CVE-2026-5670?
- CVE-2026-5670 is a medium-severity vulnerability in Cyber-Iii Student-Management-System, classified under Improper Access Control. CVSS score: 6.3/10. Published 2026-04-06.
- How severe is CVE-2026-5670?
- Medium severity. CVSS v3 base score is 6.3 out of 10.