How severe is CVE-2018-3727?

CVE-2018-3727 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2018-3727 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-3727?

CVE-2018-3727 affects 626 Project 626. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-3727?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-3727 published?

CVE-2018-3727 was published on 2018-06-07 and last updated on 2026-06-17.

CVE-2018-3727

CVE-2018-3727 is a high-severity vulnerability in 626 Project 626 with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: 626 Project 626
Published: 2018-06-07
Last modified: 2026-06-17

Description

626 node module suffers from a Path Traversal vulnerability due to lack of validation of file, which allows a malicious user to read content of any file with known path.

Frequently asked questions

What is CVE-2018-3727?: 626 node module suffers from a Path Traversal vulnerability due to lack of validation of file, which allows a malicious user to read content of any file with known path.
How severe is CVE-2018-3727?: CVE-2018-3727 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2018-3727 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-3727?: CVE-2018-3727 affects 626 Project 626. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-3727?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-3727 published?: CVE-2018-3727 was published on 2018-06-07 and last updated on 2026-06-17.

References

https://hackerone.com/reports/311216

Affected products (1)

cpe:2.3:a:626_project:626:1.1.1:*:*:*:*:node.js:*:*

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