CVE-2026-56705
Published:August 25, 2026
Updated:September 24, 2026
Adminer before 5.4.3 fails to sanitize the server field before constructing a PDO DSN string, allowing unauthenticated attackers to inject ODBC parameters via semicolons. Attackers can inject TraceFile and TraceOn parameters to write PHP code to the web root, achieving remote code execution when the trace file is accessed.
Affected Packages
https://github.com/vrana/adminer.git (GITHUB):
Affected version(s) >=v5.4.0 <v5.4.3Fix Suggestion:
Update to version v5.4.3vrana/adminer (PHP):
Affected version(s) >=v5.4.0 <v5.4.3Fix Suggestion:
Update to version v5.4.3Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
9.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
9.8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
External Control of File Name or Path
EPSS
Base Score:
0.50