CVE-2026-29962: Hsclabs Mailinspector

High severity, CVSS 7.5. EPSS: 1.8% chance of exploitation in the next 30 days.

HSC MailInspector v5.3.3-7 contains a Local File Inclusion (LFI) vulnerability caused by improper control of user-supplied file paths. The endpoint /vendor/phpunit/phpunit.php processes user-controlled parameters that directly affect file access operations without adequate validation, sanitization, or path restriction. This allows a remote attacker to exploit Path Traversal techniques to read arbitrary files from the underlying operating system and application directories, leading to sensitive information disclosure.

Affected products

• Hsclabs Mailinspector: version 5.3.3-7 only

Published 2026-05-18. Last modified 2026-06-17.