CVE-2026-54237

CRITICAL CVSS 4.0: 9.3 EPSS 0.56%
Updated Sep 25, 2026
PHP
Parameter Value
CVSS 9.3 (CRITICAL)
Fixed In 2.4.2
Type CWE-94 (Code Injection), CWE-862 (Missing Authorization)
Vendor PHP
Public PoC No

Wavelog is web-based amateur radio logging software. From 1.8 until 2.4.2, Wavelog exposes /install/ajax.php and /install/includes/interface_assets/triggers.php after installation without an installation lock or permission check. Unsanitized input reaches write_config() and write_configfile() in install/includes/core/core_class.php, allowing a remote unauthenticated attacker to read or write log files and place attacker-controlled content into PHP configuration files.

The resulting PHP configuration content can execute on the server. This issue is fixed in version 2.4.2.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v4.0