Auth bypass in Prosolution Wp Client

CVE-2026-19052

The ProSolution WP Client WordPress plugin before 2.0.9 does not perform capability checks on two administrative AJAX actions, and the nonce they rely on is published on its public frontend, allowing any authenticated user, such as a subscriber, to trigger an administrative data synchronisation and to clear the ProSolution WP Client WordPress plugin before 2.0.9's activity records.

Vulnerability class: Broken Access Control

Published · last modified .

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.003 (15.2th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 15th percentile — 15.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-19052: held from 0.002 to 0.003.

EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001

Affected products

  • Prosolution Wp Client — versions 0

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-19052?
CVE-2026-19052 is a medium-severity vulnerability in Prosolution Wp Client, classified under Missing Authorization. CVSS score: 4.3/10. Published 2026-08-12.
How severe is CVE-2026-19052?
Medium severity. CVSS v3 base score is 4.3 out of 10.