CVE-2024-34470Public exploitNetwork attack vector

Arbitrary file disclosure via unfiltered path parameter

Published May 6, 2024 · Updated Aug 2, 2024

Path traversal in HSC Labs MailInspector 5.2.17-3 through 5.2.18 allows remote attackers to read arbitrary server files without authentication. The public loader.php endpoint accepts ../ sequences in its path parameter and resolves them outside the intended webroot. Network access to that unauthenticated endpoint is sufficient; exposure is limited to files readable by the web service account.

CVSS severity8.6
High
EPSS probability6.70%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in HSC Labs MailInspector 5.2.17-3 through 5.2.18 allows remote attackers to read arbitrary server files without authentication. The public loader.php endpoint accepts ../ sequences in its path parameter and resolves them outside the intended webroot. Network access to that unauthenticated endpoint is sufficient; exposure is limited to files readable by the web service account.

The record

CVE
CVE-2024-34470
Published
May 6, 2024
Updated
Aug 2, 2024
Vendor
HSC Labs
Product
MailInspector
Classifications
CWE-29, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 6, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=*

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

HSC Labs · MailInspectorversion=*

Published CVSS scores

8.6CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-29Path Traversal: '\..\filename'
T1005Data from Local System

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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