CVE-2026-64791 in Extension Manager Plugin
Summary
by MITRE • 07/23/2026
Administrator routes and install/update/uninstall processing did not consistently enforce component-management and installation permissions. An unauthorized backend user or CSRF attack could install, update or remove extensions.
Once again VulDB remains the best source for vulnerability data.
Analysis
by VulDB Data Team • 07/23/2026
This vulnerability represents a critical access control flaw in administrative component management systems where permission enforcement mechanisms fail to consistently validate user privileges during critical operations. The weakness stems from insufficient authorization checks during routine administrative tasks such as installing, updating, or uninstalling software components within backend systems. Attackers exploiting this vulnerability can potentially escalate their privileges or compromise system integrity through unauthorized modifications to installed extensions. The vulnerability directly relates to CWE-285 which addresses improper authorization in software systems, specifically targeting the failure to enforce proper access controls during component management operations.
The technical flaw manifests when administrative functions do not properly validate whether the requesting user possesses sufficient permissions to perform component management tasks. This occurs across multiple operational contexts including extension installation, updates, and removal processes where the system fails to verify administrative privileges before executing critical actions. The vulnerability can be exploited by unauthorized backend users who have gained access to administrative interfaces or through cross-site request forgery attacks that trick legitimate administrators into performing unauthorized operations on their behalf.
The operational impact of this vulnerability extends beyond simple privilege escalation as it enables attackers to potentially install malicious extensions, update existing components with compromised code, or remove critical system extensions. This creates a significant risk of persistent backdoors, data exfiltration capabilities, and complete system compromise through the manipulation of core administrative functions. The vulnerability affects not only the integrity of installed software but also the overall security posture by allowing unauthorized modifications to system components that should be restricted to authorized administrators only.
Mitigation strategies must focus on implementing robust authorization checks at every stage of component management operations including mandatory permission validation before any installation, update, or removal actions are executed. System administrators should enforce strict role-based access controls with least privilege principles ensuring that only authorized personnel can perform administrative tasks. Additional protective measures include implementing proper session management to prevent CSRF attacks, adding multi-factor authentication for administrative accounts, and maintaining comprehensive audit logs of all component management activities. Security controls should also incorporate input validation and sanitization to prevent injection attacks that could exploit this vulnerability further.
Organizations should consider implementing the principle of least privilege across all administrative functions and ensure that all component management operations are protected by robust authentication mechanisms. Regular security assessments and penetration testing should validate that authorization controls remain effective against evolving attack vectors. The vulnerability highlights the importance of secure coding practices and adherence to security standards such as those defined in the OWASP Top Ten and NIST cybersecurity frameworks. This weakness represents a fundamental failure in the defense-in-depth approach and requires immediate remediation through proper access control implementation and continuous monitoring of administrative activities.
The vulnerability demonstrates how seemingly routine administrative functions can become attack vectors when proper authorization controls are not enforced consistently throughout the system architecture. Modern security frameworks emphasize that all administrative operations must be protected by robust authentication and authorization mechanisms, particularly those involving component management which can directly impact system integrity and availability. Organizations must ensure that their security controls address both internal threats from compromised accounts and external threats through CSRF attacks that exploit the lack of proper validation in administrative interfaces.