ProSolution WP Client cookie injection exposes and deletes stored data
ProSolution WP Client before 2.0.9 processes the client-controlled removesite cookie on every request without authentication or a capability check and uses its unsanitized value in SQL queries. An unauthenticated attacker can read arbitrary database data and delete records stored by the plugin.
- Component
- ProSolution WP Client
- Plugin slug
prosolution-wp-client- Affected
- < 2.0.9
- Safe version
2.0.9- Published
- Aug 10, 2026
This CVE was published Aug 10, 2026 and is one of 10 known issues for this plugin.
Update, patch or deactivate.
Update to 2.0.9 or later. Review requests containing unusual plugin cookies, audit the database for missing ProSolution WP Client records, restore deleted data from a known-good backup, and rotate credentials if sensitive data may have been read.
A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
The ProSolution WP Client WordPress plugin before 2.0.9 does not sanitise a cookie value before using it in SQL queries, and processes that cookie on every request without any authentication or capability check, allowing unauthenticated users to read arbitrary data from the database and to delete the records the ProSolution WP Client WordPress plugin before 2.0.9 stores.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N