CVE-2026-62056 in Fluent CRM Plugin
Summary
by MITRE • 10/30/2026
Missing Authorization vulnerability in WP ManageNinja LLC Fluent CRM fluent-crm allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Fluent CRM: from n/a through 3.2.6.
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Analysis
by VulDB Data Team • 10/30/2026
The identified security flaw represents a critical failure in access control mechanisms within the Fluent CRM plugin, specifically affecting versions ranging from initial releases up to version 3.2.6 developed by WP ManageNinja LLC. This vulnerability is classified as an insecure direct object reference or broken access control issue, where the application fails to properly verify whether the authenticated user has sufficient privileges to perform specific actions on requested resources. In a typical WordPress environment, this means that users with lower-level roles, such as subscribers or contributors who should not have administrative capabilities, can manipulate HTTP requests to execute functions reserved for administrators. The core technical flaw lies in the absence of robust server-side authorization checks before processing sensitive operations, allowing attackers to bypass intended security boundaries simply by altering request parameters like post IDs or action types.
From a functional perspective, this misconfiguration enables unauthorized users to perform actions that compromise the integrity and confidentiality of the CRM system. An attacker could potentially view private customer data, modify contact information, delete records, or even execute administrative tasks such as changing plugin settings if those functions are exposed through accessible endpoints without proper role verification. This lack of enforcement creates a significant risk for businesses relying on Fluent CRM to manage sensitive client relationships and personal identifiable information. The operational impact extends beyond simple data leakage; it undermines the trust model of the application, allowing malicious actors to escalate privileges within the WordPress ecosystem if combined with other vulnerabilities or through social engineering tactics that trick administrators into interacting with manipulated interfaces generated by these unauthorized requests.
This vulnerability aligns closely with CWE-284, which describes Improper Access Control, and falls under the MITRE ATT&CK technique T1078, Valid Accounts, specifically regarding privilege escalation within a system or application. The exploitation vector typically involves crafting specific HTTP POST or GET requests that target internal API endpoints or AJAX handlers associated with Fluent CRM features. Since WordPress plugins often rely on nonce verification for CSRF protection but may neglect strict capability checks during the actual execution of the action, this gap allows automated tools to systematically probe and exploit these weak points. The persistence of such flaws in widely used plugins highlights the importance of rigorous code auditing practices that prioritize principle of least privilege enforcement at every level of interaction with user-supplied data.
To mitigate this risk, immediate updates to Fluent CRM version 3.2.7 or later are strongly recommended as they address these authorization gaps by implementing stricter capability checks for all administrative and sensitive operations. Administrators should also ensure that their WordPress installations utilize strong password policies and multi-factor authentication to reduce the likelihood of credential compromise, which often precedes such exploitation attempts. Additionally, deploying a Web Application Firewall can help detect and block anomalous request patterns indicative of access control bypass attempts. Regular security audits and penetration testing focused on role-based access controls are essential for maintaining the integrity of CRM systems that handle sensitive business data.