Covid 19 Contact Tracing System
CVE-2025-66802
CRITICAL
Unrestricted Upload of File with Dangerous Type (CWE-434)
2026-01-12
cve@mitre.org
9.8
CVSS 3.1 · NVD
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Severity by source
NVD
PRIMARY
9.8
CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Lifecycle Timeline
3
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
PoC Detected
Jan 22, 2026 - 15:56 vuln.today
Public exploit code
CVE Published
Jan 12, 2026 - 20:15 nvd
CRITICAL 9.8
DescriptionCVE.org
Sourcecodester Covid-19 Contact Tracing System 1.0 is vulnerable to RCE (Remote Code Execution). The application receives a reverse shell (php) into imagem of the user enabling RCE.
AnalysisAI
Sourcecodester Covid-19 Contact Tracing System 1.0 allows unauthenticated RCE through unrestricted PHP file upload in the user image functionality. PoC available.
Technical ContextAI
The image upload accepts any file type including PHP (CWE-434). An attacker can upload a PHP reverse shell that executes when accessed via the web server.
RemediationAI
Do not use this application in production. It has fundamental security flaws.
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External POC / Exploit Code
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Verify the source reputation and cross-reference with known databases (Exploit-DB, GitHub Security).