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TI-2026-23407 Aliases CVE-2026-29963GHSA-wcm2-h52j-8wcv

HSC MailInspector 5.3.3-7 has a Path Traversal vulnerability due to improper validation…

Priority MEDIUM 44CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-22 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0266 85th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:hsclabs:mailinspector:5.3.3-7:*:*:*:*:*:*:*5.3.3-7VulnerableHsclabs
  • cpe:2.3:a:hsclabs:mailinspector:5.3.3-7:*:*:*:*:*:*:* Versions 5.3.3-7 Vulnerable ·Hsclabs

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-29963
  2. 2026-10-03 Alias added: GHSA-wcm2-h52j-8wcv

References

Advisory 2

Other 1

  • TI-2024-22800 An issue was discovered in HSC Mailinspector 5.2.17-3 through v.5.2.18. CVSS 3.1HIGH 8.6
  • TI-2024-22802 An issue was discovered in HSC Mailinspector 5.2.17-3 through v.5.2.18. CVSS 3.1MEDIUM 5.5
  • TI-2024-22801 An issue was discovered in HSC Mailinspector 5.2.17-3. CVSS 3.1MEDIUM 5.4
  • TI-2024-21304 SQL Injection vulnerability in HSC Cybersecurity HC Mailinspector 5.2.17-3 through 5.2.18… CVSS 3.1MEDIUM 4.3
  • TI-2024-21305 An issue in HSC Cybersecurity HC Mailinspector 5.2.17-3 through 5.2.18 allows a remote… CVSS 3.1CRITICAL 9.8
  • TI-2026-23406 HSC MailInspector v5.3.3-7 contains a Local File Inclusion (LFI) vulnerability caused by… CVSS 3.1HIGH 7.5
See all 9 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences