What is CVE-2026-44962?

CVE-2026-44962 is a critical-severity vulnerability in Webpros Plesk, classified under Improper Neutralization of Data within XPath Expressions (XPath Injection). CVSS score: 9.9/10. Published 2026-05-29.

How severe is CVE-2026-44962?

Critical severity. CVSS v3 base score is 9.9 out of 10.

XPath Injection in Webpros Plesk

CVE-2026-44962

Plesk contains an XPath injection vulnerability in the APS Application Catalog search functionality, where user-supplied input is interpolated into XPath queries without proper sanitization. This allows an authenticated, low-privileged use…

EPSS: 0.000 (11.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Webpros Plesk — versions 18.0.75.1, 18.0.76.2

Weakness classification (CWE)

CWE-643 — Improper Neutralization of Data within XPath Expressions (XPath Injection)

References

support@hackerone.com

Frequently asked questions

What is CVE-2026-44962?: CVE-2026-44962 is a critical-severity vulnerability in Webpros Plesk, classified under Improper Neutralization of Data within XPath Expressions (XPath Injection). CVSS score: 9.9/10. Published 2026-05-29.
How severe is CVE-2026-44962?: Critical severity. CVSS v3 base score is 9.9 out of 10.