How severe is CVE-2017-18391?

CVE-2017-18391 has a CVSS 3.x base score of 2.5, rated low severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2017-18391 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-18391?

CVE-2017-18391 affects Cpanel. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-18391?

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

When was CVE-2017-18391 published?

CVE-2017-18391 was published on 2019-08-02 and last updated on 2026-06-17.

CVE-2017-18391

CVE-2017-18391 is a low-severity vulnerability in Cpanel with a CVSS 3.x base score of 2.5. 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-200.

Key facts

Severity: Low (CVSS 3.x base score 2.5)
CVSS v2: 1.9
EPSS exploit prediction: 0% (21st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Cpanel
Published: 2019-08-02
Last modified: 2026-06-17

Description

cPanel before 68.0.15 allows attackers to read backup files because they are world-readable during a short time interval (SEC-323).

Frequently asked questions

What is CVE-2017-18391?: cPanel before 68.0.15 allows attackers to read backup files because they are world-readable during a short time interval (SEC-323).
How severe is CVE-2017-18391?: CVE-2017-18391 has a CVSS 3.x base score of 2.5, rated low severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2017-18391 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-18391?: CVE-2017-18391 affects Cpanel. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-18391?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-18391 published?: CVE-2017-18391 was published on 2019-08-02 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:cpanel:cpanel:*:*:*:*:*:*:*:*

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