What is the CVSS score of CVE-2024-34471?

CVE-2024-34471 has a CVSS 3.1 base score of 5.4 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L. EPSS exploitation probability: 0.7%.

Is there a public PoC exploit available for CVE-2024-34471?

Yes, a public proof-of-concept exploit is available for CVE-2024-34471. Prioritise patching immediately. EPSS: 0.7%.

Mailinspector CVE-2024-34471

MEDIUM

Path Traversal (CWE-22)

2024-05-06 cve@mitre.org

PHP Path Traversal Mailinspector Hsclabs

5.4

CVSS 3.1 · Vendor: mitre

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Vulnerability Assessment

Weakness	CWE CWE-22 OWASP Top 10:2025 A01:2025 - Broken Access Control ASVS 5.0 V5 - File Handling Path canonicalization, traversal prevention MITRE ATT&CK 2 techniques across 2 tactics: Discovery, Collection The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS score of 5.4 (MEDIUM). Attack characteristics: network attack vector, low complexity, low privileges required, no user interaction not required. Public proof-of-concept exploit code is available.
Exploit ScenarioDerived	A remote attacker could access files and directories outside the intended path by sending crafted requests to the affected application.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

No patch listed yet 0.7% exploitation probability (EPSS)

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AnalysisAI

An issue was discovered in HSC Mailinspector 5.2.17-3. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate and canonicalize file paths. Use chroot or sandboxing. Reject input containing path separators or '../' sequences.

Affects your stack

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Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Path Traversal (CWE-22), which allows attackers to access files and directories outside the intended path. An issue was discovered in HSC Mailinspector 5.2.17-3. A Path Traversal vulnerability (resulting in file deletion) exists in the mliRealtimeEmails.php file. The filename parameter in the export HTML functionality does not properly validate the file location, allowing an attacker to read and delete arbitrary files on the server. This was observed when the mliRealtimeEmails.php file itself was read and subsequently deleted, resulting in a 404 error for the file and disruption of email information loading. Affected products include: Hsclabs Mailinspector.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (mitre) PRIMARY 5.4 MEDIUM

AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

Primary rating from Vendor (mitre) · only source for this CVE.

CVSS VectorVendor: mitre

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

Low

DescriptionCVE.org

An issue was discovered in HSC Mailinspector 5.2.17-3. A Path Traversal vulnerability (resulting in file deletion) exists in the mliRealtimeEmails.php file. The filename parameter in the export HTML functionality does not properly validate the file location, allowing an attacker to read and delete arbitrary files on the server. This was observed when the mliRealtimeEmails.php file itself was read and subsequently deleted, resulting in a 404 error for the file and disruption of email information loading.

Threat Intelligence Overview

EPSS Score

0.7%

Top 50% exploitable

Exploit

POC

Public exploit code exists

Data Quality

3 sources

Confidence: Low

NVD

CVE.org

EPSS

GitHub

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity MEDIUM

CISA KEV No

Public POC Yes

EPSS 0.7%

Patch available No

Active threat No

Deciding rule

MEDIUM severity (CVSS 4.0-6.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.