CVE-2026-107127 in Uncanny Toolkit for LearnDash Plugin
Summary
by MITRE • 10/21/2026
The Uncanny Toolkit for LearnDash WordPress plugin before 3.8.2 does not validate the origin of a password-reset request, allowing an unauthenticated attacker to set the password of a user who is partway through a password reset to an attacker-chosen value through a forged request, resulting in full account takeover.
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Analysis
by VulDB Data Team • 10/21/2026
The vulnerability identified within versions of the Uncanny Toolkit for LearnDash WordPress plugin prior to version 3.8.2 represents a critical failure in authentication logic and session management principles. This flaw specifically targets the password reset mechanism, which is designed as a secure channel for users who have lost access to their primary credentials. The core technical deficiency lies in the application's inability to validate the origin or integrity of requests initiated during this sensitive process. In standard security architectures, state changes such as setting a new password must be tied to specific, non-guessable tokens that are validated against user sessions and request origins to prevent interception or forgery. However, in this implementation, the system fails to enforce strict validation on the source of these requests, effectively treating any incoming password reset submission with equal trust regardless of its provenance.
This lack of origin validation allows an unauthenticated attacker to exploit the workflow by crafting a forged HTTP request that mimics a legitimate user-initiated action. By intercepting or predicting the parameters associated with a victim who is currently in the middle of a password recovery process, the attacker can submit their own chosen credentials directly into the system's update routine. Because the application does not verify whether the request originated from the authenticated session of the account owner or was generated by an external actor, it accepts the malicious payload and updates the user's password accordingly. This bypasses the fundamental security assumption that only the legitimate user should be able to finalize a reset operation after initiating it through their registered email address.
The operational impact of this vulnerability is severe, leading directly to full account takeover without any prior authentication credentials. Once the attacker successfully sets a new password for the target user, they gain complete administrative or standard access to the WordPress site depending on the victim's role within LearnDash environments. This compromise extends beyond simple login capability; it potentially exposes sensitive course data, student records, and other proprietary information stored within the Learning Management System. Furthermore, since this vulnerability affects unauthenticated users, it requires no prior knowledge of valid credentials or complex social engineering to execute, making it a high-risk vector for automated exploitation tools commonly found in cybercrime ecosystems.
From an industry standards perspective, this flaw aligns with CWE-284 Improper Access Control and CWE-359 Exposure of Private Information Through Sensitivity of Session ID if session tokens were involved, but more accurately reflects CWE-613 Insufficient Session Expiration or CWE-798 Use of Hard-coded Credentials in the context of token handling. In terms of MITRE ATT&CK framework classification, this vulnerability facilitates Account Manipulation and Credential Access techniques, specifically allowing an adversary to take over existing accounts by exploiting weaknesses in authentication workflows. The attack vector is classified as remote with no additional privileges required, significantly lowering the barrier for entry for malicious actors targeting WordPress-based educational platforms.
To mitigate this risk, immediate upgrading of the Uncanny Toolkit for LearnDash plugin to version 3.8.2 or later is essential, as these versions implement proper validation checks for password reset requests. Administrators should ensure that all plugins are kept up-to-date with security patches released by vendors. Additionally, implementing multi-factor authentication adds a critical layer of defense even if account credentials are compromised through such vulnerabilities. Security monitoring tools should be configured to detect unusual patterns in login attempts and password change events, particularly those occurring shortly after reset requests have been initiated but not completed by the legitimate user. Regular security audits focusing on session management and state transition validation will help identify similar architectural weaknesses before they can be exploited.