CVE-2026-19055 ProSolution CVE debrief

Who should care

Administrators and users of the ProSolution WP Client WordPress plugin, as well as security teams responsible for monitoring and patching vulnerabilities in WordPress plugins, should prioritize updating to version 2.0.11 or later to address the reflected Cross-Site Scripting vulnerability. Additionally, security teams should review and sanitize user input on public pages, monitor for suspicious activity, and implement compensating controls to mitigate the vulnerability. Asset owners and operators using the affected plugin should also be aware of the potential risks and take immediate action to mitigate the vulnerability. Vulnerability management and security teams should track exceptions, retest remediated assets, and close the item only after evidence is documented. The impacted party should perform compensating controls for exposed systems while remediation is scheduled and verified, and check relevant monitoring, detection, and logs for exposed assets that need extra review. Security teams should also consider performing an asset inventory to identify potentially affected systems. Finally, impacted parties should consider implementing rollback and change windows for remediation efforts, and track source information to ensure accurate vulnerability management. All these efforts should be coordinated with source tracking to ensure accurate information flow and vulnerability mitigation progress. All these parties should also consider reviewing the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance, and assign an owner for follow-up on affected product deployments in managed environments. Lastly, impacted parties should plan vendor-supported updates or mitigations through normal change control where exposure is confirmed. Therefore, impacted parties should be highly cautious and take immediate action to address this vulnerability. The CVE Program and NVD records provide further details on the vulnerability and its potential impact. It is essential for defenders to review the official advisory and CVE record to validate the affected scope, severity, and vendor guidance. The impacted party should also consider compens

Technical summary

The ProSolution WP Client WordPress plugin before 2.0.11 does not properly sanitize and escape user input, leading to a reflected Cross-Site Scripting vulnerability. This can be exploited by any visitor, including logged-in administrators, and can result in unauthorized actions being performed on the affected WordPress installation. The vulnerability is caused by inadequate input validation and sanitization in the plugin's public pages.

Defensive priority

Administrators and users of the ProSolution WP Client WordPress plugin should prioritize updating to version 2.0.11 or later to address the reflected Cross-Site Scripting vulnerability.

Recommended defensive actions

• Update ProSolution WP Client WordPress plugin to version 2.0.11 or later
• Review and sanitize user input on public pages
• Monitor for suspicious activity and implement compensating controls
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed
• Check relevant monitoring, detection, and logs for exposed assets that need extra review

Evidence notes

The CVE record and NVD entry provide details on the vulnerability in the ProSolution WP Client WordPress plugin. Evidence is based on official CVE Program and NVD records, as well as a source reference from WPScan. The vulnerability has been confirmed to exist in versions prior to 2.0.11, and defenders should verify the presence of affected product deployments in their environments. Additional review of compensating controls and monitoring for suspicious activity is recommended while remediation is scheduled and verified.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.