What is CVE-2017-18386?

CVE-2017-18386 is a high-severity vulnerability in Cpanel, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 7.2/10. Published 2019-08-02.

How severe is CVE-2017-18386?

High severity. CVSS v3 base score is 7.2 out of 10.

Vulnerability in Cpanel

CVE-2017-18386

cPanel before 68.0.15 allows arbitrary code execution via Maketext injection in PostgresAdmin (SEC-313).

Published 2019-08-02 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.020 (79.7th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 79.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000

Affected products

Cpanel

Weakness classification (CWE)

CWE-74 — Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection)

References

documentation.cpanel.net/display/CL/68+Change+Log (Product, Release Notes)
news.cpanel.com/cpanel-tsr-2017-0006-full-disclosure/ (Vendor Advisory)

Frequently asked questions

What is CVE-2017-18386?: CVE-2017-18386 is a high-severity vulnerability in Cpanel, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 7.2/10. Published 2019-08-02.
How severe is CVE-2017-18386?: High severity. CVSS v3 base score is 7.2 out of 10.