CVE-2026-17587 in My Agile Privacy Plugin
Summary
by MITRE • 08/25/2026
The My Agile Privacy® – CMP, Cookie Consent & Privacy Tools plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 3.3.6. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to modify plugin settings including missing_cookie_shield, cookie_shield_running, cmode_v2_js_on_error, cmode_v2_js_error_code, and cmode_v2_js_error_motivation stored in the plugin's settings key.
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Analysis
by VulDB Data Team • 08/25/2026
The My Agile Privacy CMP Cookie Consent & Privacy Tools plugin for WordPress contains a critical authorization bypass vulnerability affecting all versions up to and including 3.3.6. This security flaw stems from an insufficient verification of user privileges when handling administrative actions within the plugin interface. Specifically, the application fails to enforce proper access control checks before processing requests that modify core configuration parameters. As a result, unauthenticated attackers can interact with sensitive endpoints without valid credentials or session tokens, effectively bypassing the intended authentication mechanisms designed to protect these settings from unauthorized modification.
The technical nature of this vulnerability aligns closely with CWE-284 Improper Access Control and CWE-306 Missing Authentication for Critical Function. The root cause lies in the plugin's backend logic, which processes state-changing requests without validating whether the initiating request originates from a legitimate administrator session. This oversight allows external actors to send crafted HTTP requests that directly manipulate internal variables stored under the plugins settings key. By exploiting this gap, an attacker can alter critical configuration flags such as missing_cookie_shield, cookie_shield_running, and various JavaScript mode parameters including cmode_v2_js_on_error, cmode_v2_js_error_code, and cmode_v2_js_error_motivation. These actions are typically restricted to users with the manage_options capability in WordPress environments, yet this restriction is not enforced at the code level for these specific endpoints.
The operational impact of this vulnerability extends beyond simple configuration tampering. By modifying settings related to cookie shields and JavaScript error handling modes, an attacker can fundamentally alter how privacy consent mechanisms operate on a compromised website. For instance, disabling or manipulating the missing_cookie_shield could allow malicious scripts to execute without user consent, potentially facilitating cross-site scripting attacks or data exfiltration under the guise of legitimate tracking activities. Furthermore, altering cmode_v2_js_on_error and related parameters may disrupt normal site functionality or create conditions where error messages expose sensitive internal details to end-users. This capability effectively undermines the integrity of privacy compliance measures that the plugin is designed to enforce, potentially leading to regulatory violations regarding GDPR or CCPA compliance depending on the jurisdiction and specific implementation context.
From a threat intelligence perspective, this vulnerability maps directly to MITRE ATT&CK technique T1078 Valid Accounts when considering how attackers might leverage stolen credentials if authentication were partially bypassed, but more accurately reflects T1546 Event Triggered Execution or general privilege escalation through misconfiguration exploitation since it allows unauthenticated actors to change system state. The ability to modify these specific settings enables persistent changes that survive server restarts and affect all subsequent user interactions with the site. Attackers could use this access to disable privacy notices, thereby increasing the likelihood of successful phishing campaigns or unauthorized data collection by third-party trackers embedded in the page structure.
Mitigation strategies must prioritize immediate remediation through software updates. Administrators running versions up to 3.3.6 should upgrade to the latest patched version where proper authorization checks have been implemented for all administrative endpoints exposed by the plugin. In cases where upgrading is not immediately feasible, temporary mitigations include restricting access to the WordPress admin directory via IP whitelisting in web server configurations such as Nginx or Apache. Additionally, implementing a Web Application Firewall with rules specifically targeting unauthorized POST requests to known vulnerable AJAX handlers can provide an additional layer of defense. Regular auditing of plugin code for proper capability checks using functions like current_user_can is essential during development and maintenance phases to prevent similar access control failures in future releases.