Vulnerability record · CVE-2026-54237 · published 17 September 2026

CVE-2026-54237: Code injection vulnerability

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.

9.3 CVSS 4.0 Critical EPSS 0.76% · top 46.4% CWE-94 · Code injectionCWE-862 · Missing authorization Deferred

9.3CVSS 4.0 base score

0.76%EPSS exploitation probability, 30 days

NoNot in CISA KEV

0Affected product versions listed by NVD

4References

24 Sep 2026Last modified by NVD

Description

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

Link	Tags
https://github.com/wavelog/wavelog/commit/9661efa86eff4598bd1a7ad8ca4ec60e76b6fb25
https://github.com/wavelog/wavelog/pull/3228
https://github.com/wavelog/wavelog/releases/tag/2.4.2
https://github.com/wavelog/wavelog/security/advisories/GHSA-jxjv-chgm-rh36

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Source: NIST National Vulnerability Database (record CVE-2026-54237), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.