CVE-2026-11779 in PayloadCMS
Summary
by MITRE • 06/26/2026
An Improper Authorization vulnerability exists in PayloadCMS version 3.84.1 due to insufficient access control on the account unlock operation.
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Analysis
by VulDB Data Team • 06/26/2026
The vulnerability under analysis represents an improper authorization flaw in PayloadCMS version 3.84.1 that specifically targets the account unlock functionality. This issue falls under the broader category of access control violations and can be classified as CWE-285, which addresses improper authorization within software systems. The weakness manifests when the application fails to properly validate user permissions before allowing account unlock operations, creating a potential pathway for unauthorized individuals to bypass normal authentication controls.
The technical implementation flaw occurs within the account management module where the system does not adequately verify whether the requesting user possesses sufficient privileges to perform account unlocking actions. This vulnerability typically arises from insufficient input validation and access control checks that should occur during the account unlock process. Attackers can exploit this weakness by crafting malicious requests that attempt to unlock accounts without proper authorization, potentially gaining unauthorized access to user accounts or disrupting normal authentication workflows.
The operational impact of this vulnerability extends beyond simple privilege escalation as it can enable attackers to compromise user accounts and potentially gain access to sensitive data within the PayloadCMS environment. From an ATT&CK framework perspective, this weakness maps to T1078 Valid Accounts and T1531 Account Access Removal, as unauthorized users could unlock accounts to either assume legitimate user identities or manipulate account states for malicious purposes. The vulnerability is particularly concerning in environments where PayloadCMS manages sensitive content or user data, as it could lead to unauthorized data access or modification.
Mitigation strategies should focus on implementing robust access control mechanisms that validate user permissions before executing account unlock operations. Organizations should ensure that proper authentication checks are performed and that the system enforces strict role-based access controls for administrative functions. The recommended approach includes updating to the latest PayloadCMS version where this vulnerability has been addressed, implementing additional logging and monitoring of account unlock activities, and conducting regular security assessments to identify similar access control weaknesses. Security teams should also consider implementing multi-factor authentication requirements for privileged account operations and establishing automated alerts for suspicious account unlock attempts.
This vulnerability demonstrates the critical importance of proper authorization controls in content management systems, particularly when dealing with user account management functions. The flaw underscores the need for comprehensive security testing during development cycles and regular vulnerability assessments to identify access control weaknesses that could be exploited by malicious actors. Organizations using PayloadCMS or similar platforms must prioritize addressing such issues promptly to maintain the integrity and security of their digital assets and user data.