CVE-2026-5670: Cyber-III Student-Management-System · Unrestricted Upload
Affects Cyber-III Student-Management-SystemSource CVE Database V5
Public exploit available · CVSS 5.3 Medium.
Data as of 30 Oct 2026, 06:59 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 10% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:PExploitation evidence
Disclosed: evidence found.
CVE published 6 Apr 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: evidence found.
CVSS exploit maturity: proof of concept public
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Cyber-IIIStudent-Management-System | Affected
| Fixed in– |
AI-suggested
Since the vendor has not responded and no remediation level is provided, users should monitor the vendor advisory for updates. Until a patch is released, consider implementing manual controls such as restricting upload file types, validating file inputs, or isolating the upload functionality to minimize risk.
Description
CVE-2026-5670 is a medium severity vulnerability in the Cyber-III Student-Management-System affecting the move_uploaded_file function in /AssignmentSection/submission/upload.php. It allows an attacker with low privileges to remotely perform unrestricted file uploads by manipulating the File argument. The vulnerability has a CVSS 4.0 base score of 5.3 and an exploit has been publicly disclosed, though no known exploits are reported in the wild. The vendor has not responded or provided a patch, and due to the product's continuous delivery model, no specific fixed version is identified yet.