How severe is CVE-2018-6409?

CVE-2018-6409 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2018-6409 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 15% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-6409?

CVE-2018-6409 affects Machform. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-6409?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-6409 published?

CVE-2018-6409 was published on 2018-05-26 and last updated on 2026-06-17.

CVE-2018-6409

CVE-2018-6409 is a medium-severity vulnerability in Machform with a CVSS 3.x base score of 5.3. Its EPSS exploit-prediction score of 15% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-22.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 15% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Machform
Published: 2018-05-26
Last modified: 2026-06-17

Description

An issue was discovered in Appnitro MachForm before 4.2.3. The module in charge of serving stored files gets the path from the database. Modifying the name of the file to serve on the corresponding ap_form table leads to a path traversal vulnerability via the download.php q parameter.

Frequently asked questions

What is CVE-2018-6409?: An issue was discovered in Appnitro MachForm before 4.2.3. The module in charge of serving stored files gets the path from the database. Modifying the name of the file to serve on the corresponding ap_form table leads to a path traversal vulnerability via the download.php q parameter.
How severe is CVE-2018-6409?: CVE-2018-6409 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2018-6409 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 15% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-6409?: CVE-2018-6409 affects Machform. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-6409?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-6409 published?: CVE-2018-6409 was published on 2018-05-26 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:machform:machform:4.2.3:*:*:*:*:*:*:*

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