What is CVE-2026-64636?

CVE-2026-64636 is a high-severity vulnerability in Webpros Plesk, classified under SQL Injection. CVSS score: 7.7/10. Published 2026-08-07.

How severe is CVE-2026-64636?

High severity. CVSS v3 base score is 7.7 out of 10.

SQL Injection in Webpros Plesk

CVE-2026-64636

An SQL injection vulnerability in Plesk Obsidian up to 18.0.80 for Linux and Windows allows an authenticated user to read arbitrary data from the panel database.

Vulnerability class: SQL Injection

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N.

Affected products

Webpros Plesk — versions 18.0.51

Weakness classification (CWE)

CWE-89 — SQL Injection

References

support@hackerone.com

Frequently asked questions

What is CVE-2026-64636?: CVE-2026-64636 is a high-severity vulnerability in Webpros Plesk, classified under SQL Injection. CVSS score: 7.7/10. Published 2026-08-07.
How severe is CVE-2026-64636?: High severity. CVSS v3 base score is 7.7 out of 10.