How severe is CVE-2017-18409?

CVE-2017-18409 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2017-18409 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-18409?

CVE-2017-18409 affects Cpanel. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-18409?

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

When was CVE-2017-18409 published?

CVE-2017-18409 was published on 2019-08-02 and last updated on 2026-06-17.

CVE-2017-18409

CVE-2017-18409 is a medium-severity vulnerability in Cpanel with a CVSS 3.x base score of 6.5. 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-20.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.0
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Cpanel
Published: 2019-08-02
Last modified: 2026-06-17

Description

In cPanel before 67.9999.103, the backup interface could return a backup archive with all MySQL databases (SEC-283).

Frequently asked questions

What is CVE-2017-18409?: In cPanel before 67.9999.103, the backup interface could return a backup archive with all MySQL databases (SEC-283).
How severe is CVE-2017-18409?: CVE-2017-18409 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2017-18409 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-18409?: CVE-2017-18409 affects Cpanel. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-18409?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-18409 published?: CVE-2017-18409 was published on 2019-08-02 and last updated on 2026-06-17.

References

Affected products (1)

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

More vulnerabilities in Cpanel

CVE-2004-1770 — Critical (CVSS 10.0): The login page for cPanel 9.1.0, and possibly other versions, allows remote attackers to execute arbitrary code via…
CVE-2004-1769 — Critical (CVSS 10.0): The "Allow cPanel users to reset their password via email" feature in cPanel 9.1.0 build 34 and earlier, including 8.x,…
CVE-2003-1425 — Critical (CVSS 10.0): guestbook.cgi in cPanel 5.0 allows remote attackers to execute arbitrary commands via the template parameter.
CVE-2026-41940 — Critical (CVSS 9.8): cPanel and WHM versions after 11.40 contain an authentication bypass vulnerability in the login flow that allows…
CVE-2020-26108 — Critical (CVSS 9.8): cPanel before 88.0.13 mishandles file-extension dispatching, leading to code execution (SEC-488).
CVE-2020-26105 — Critical (CVSS 9.8): In cPanel before 88.0.3, insecure chkservd test credentials are used on a templated VM (SEC-554).

All CVEs affecting Cpanel →

Other CWE-20 (Improper Input Validation) vulnerabilities

CVE-2026-48316 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48281 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48277 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48055 — Critical (CVSS 10.0): Streambert is a cross-platform Electron Desktop App to stream and download any video media. In versions 2.4.0 and…
CVE-2026-34910 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS…
CVE-2026-33587 — Critical (CVSS 10.0): Lack of user input sanitisation in Open Notebook v1.8.3 allows the application user to execute Python code (and…

Browse all CWE-20 (Improper Input Validation) vulnerabilities →