Vulnerability in Hsclabs Mailinspector
CVE-2026-29962
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.018 (78.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 78.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.018 · change: +0.015
Affected products
- Hsclabs Mailinspector — versions 5.3.3-7
Weakness classification (CWE)
References
- github.com/sql3t0/cve-disclosures (Third Party Advisory)
- hsclabs.com/pt-br/mailinspector (Product)
- github.com/sql3t0/cve-disclosures/blob/main/01_-_CVE-2026-29962_LFI+Path_Traver… (Third Party Advisory)
Frequently asked questions
- What is CVE-2026-29962?
- CVE-2026-29962 is a high-severity vulnerability in Hsclabs Mailinspector, classified under External Control of File Name or Path. CVSS score: 7.5/10. Published 2026-05-18.
- How severe is CVE-2026-29962?
- High severity. CVSS v3 base score is 7.5 out of 10.