CVE-2026-29962 Path traversal in n/a

High 7.5 Published Updated

Remote attackers can read arbitrary files from the server via path traversal in HSC MailInspector, leading to sensitive information disclosure.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-29962?

CVE-2026-29962 is a high-severity path traversal vulnerability in n/a, published on 18 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Weakness: CWE-73

Which versions are affected by CVE-2026-29962?

It affects 1 product.

Products include Hsclabs Mailinspector.

How do I fix CVE-2026-29962?

No fix has been published for CVE-2026-29962 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2026-29962 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-29962 exists.

Public exploit code: 1 Nuclei template.

Sources

Also known as GHSA-gx62-92q7-r437.

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