CVE-2026-9719 in LatePoint Plugin
Summary
by MITRE • 06/06/2026
The LatePoint – Calendar Booking Plugin for Appointments and Events plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 5.6.0. This is due to missing or incorrect nonce validation on the change_status function. This makes it possible for unauthenticated attackers to change the status of arbitrary invoices — including marking unpaid invoices as paid — without administrator consent via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
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Analysis
by VulDB Data Team • 06/06/2026
The LatePoint WordPress plugin represents a calendar booking solution for appointments and events that has been identified with a critical cross-site request forgery vulnerability affecting all versions up to and including 5.6.0. This vulnerability resides within the plugin's change_status function which fails to implement proper nonce validation mechanisms. The absence of adequate security tokens allows malicious actors to manipulate the booking system's core functionality without proper authentication or authorization. The vulnerability specifically targets the administrative capabilities of the plugin, enabling unauthorized modification of invoice statuses and payment states. Attackers can exploit this weakness to mark unpaid invoices as paid, potentially causing financial loss and operational disruption for businesses relying on the plugin for appointment management and payment processing. The security flaw fundamentally undermines the integrity of the plugin's administrative controls and creates a significant risk for organizations using this booking solution.
The technical implementation of this vulnerability stems from the lack of proper nonce validation within the change_status function, which is a well-documented weakness that aligns with CWE-352 Cross-Site Request Forgery. The absence of nonce verification means that any user can craft a malicious request that appears legitimate to the WordPress system and can execute administrative actions without proper authentication. This flaw operates under the principle that the system trusts requests that contain valid parameters without verifying the authenticity of the request source. The vulnerability enables attackers to manipulate the payment status of invoices, which constitutes a direct violation of the principle of least privilege and proper access control mechanisms. According to ATT&CK framework, this represents a technique categorized under privilege escalation and credential access through forged requests. The nonce validation mechanism is a fundamental security control that should prevent unauthorized modifications to critical system states, and its absence creates an exploitable entry point for attackers to gain unauthorized administrative capabilities.
The operational impact of this vulnerability extends beyond simple status manipulation to encompass potential financial fraud and system integrity compromise. An attacker who successfully exploits this CSRF vulnerability can mark unpaid invoices as paid, effectively allowing unauthorized revenue recognition and potentially enabling fraudulent transactions. This could result in significant financial loss for businesses using the LatePoint plugin for appointment booking and payment processing. The vulnerability is particularly dangerous because it requires minimal user interaction from the administrator, who only needs to be tricked into clicking a malicious link or visiting a compromised website. The attack vector relies on social engineering tactics to achieve unauthorized administrative access, making it particularly difficult to detect and prevent. Organizations may face compliance issues and regulatory scrutiny if financial records are compromised through this vulnerability, as it represents a failure in maintaining proper audit trails and payment verification processes. The impact is further amplified by the fact that the vulnerability affects all versions up to 5.6.0, meaning that a substantial number of users may be exposed to this risk.
Mitigation strategies for this vulnerability should focus on immediate remediation through plugin updates to versions that contain proper nonce validation. System administrators should implement additional security measures including web application firewalls that can detect and block suspicious cross-site requests, particularly those targeting administrative endpoints. The implementation of proper input validation and output encoding should be enforced to prevent unauthorized modifications to critical system parameters. Organizations should also consider implementing additional monitoring and logging mechanisms to detect unauthorized administrative activities and potential exploitation attempts. Security teams should conduct thorough vulnerability assessments of all WordPress plugins and themes to identify similar CSRF vulnerabilities that may exist in the broader plugin ecosystem. The recommended approach includes immediate patching, followed by comprehensive security auditing of the affected systems and implementation of additional defensive controls. According to industry best practices, organizations should also consider implementing multi-factor authentication for administrative access and regular security training for personnel to prevent successful social engineering attacks that could exploit this vulnerability. The remediation process should also include reviewing and updating security policies to address CSRF vulnerabilities in web applications and ensuring that all administrative functions properly validate request authenticity through proper nonce mechanisms.