CVE-2026-29963

Published May 18, 2026 CVSS 3.1 · 7.5 High EPSS 2.7% KEV · Not listed
Description
HSC MailInspector 5.3.3-7 has a Path Traversal vulnerability due to improper validation of user-supplied input in the /tap/dw.php endpoint. The text parameter is used to construct file paths without adequate normalization or restriction to a safe base directory. A remote attacker can exploit this flaw to access arbitrary files on the underlying operating system, resulting in unauthorized disclosure of sensitive information.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title Arbitrary File Read via Unvalidated Path Parameter in HSC MailInspector
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Arbitrary File Read via Unvalidated Path Parameter in HSC MailInspector
Type Values Removed Values Added
CPEs cpe:2.3:a:hsclabs:mailinspector:5.3.3-7:*:*:*:*:*:*:*
Type Values Removed Values Added
Title Path Traversal Allowing Arbitrary File Disclosure in HSC MailInspector 5.3.3-7
Weaknesses CWE-20
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

Type Values Removed Values Added
First Time appeared Hsclabs
Hsclabs mailinspector
Vendors & Products Hsclabs
Hsclabs mailinspector
Type Values Removed Values Added
Title Path Traversal Allowing Arbitrary File Disclosure in HSC MailInspector 5.3.3-7
Weaknesses CWE-20
CWE-22
Type Values Removed Values Added
Description HSC MailInspector 5.3.3-7 has a Path Traversal vulnerability due to improper validation of user-supplied input in the /tap/dw.php endpoint. The text parameter is used to construct file paths without adequate normalization or restriction to a safe base directory. A remote attacker can exploit this flaw to access arbitrary files on the underlying operating system, resulting in unauthorized disclosure of sensitive information.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
May 19, 2026, 1:42 PM
Reserved
Mar 4, 2026, 12:00 AM
Status
Analyzed
Published
May 18, 2026, 6:17 PM
Modified
Oct 19, 2026, 10:10 PM