CVE-2026-63111 in SuiteCRM
Summary
by MITRE • 11/05/2026
SuiteCRM is an open-source, enterprise-ready Customer Relationship Management (CRM) software application. Prior to 7.15.2 and 8.10.2, the V8 module API lacks module-level authorization and permits a low-privileged user to create SchedulersJobs records with attacker-controlled target values. The affected flow begins at /Api/V8/module and uses SchedulersJobs, target, cron.php, and url:: to carry attacker-controlled data or authorization state into the security-sensitive operation. Cron.php later executes the queued job with system privileges, and the url:: target makes server-side requests to internal or external hosts, can follow redirects, can persist as a recurring job, and may expose internal services. This issue is fixed in versions 7.15.2 and 8.10.2.
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Analysis
by VulDB Data Team • 11/05/2026
SuiteCRM serves as an open-source enterprise-grade Customer Relationship Management platform widely deployed for managing customer interactions and business processes. A critical security deficiency was identified within the V8 module API prior to version 7.15.2 and 8.10.2, characterized by a fundamental lack of module-level authorization controls. This architectural flaw allows authenticated users with low-privileged roles to interact with sensitive backend services that should be restricted to administrative functions or internal system processes only. The vulnerability specifically impacts the creation of SchedulersJobs records, which are responsible for managing automated tasks and cron jobs within the application environment.
The technical exploitation path begins at the /Api/V8/module endpoint, where an attacker can submit crafted requests containing controlled target values. These inputs are processed by the SchedulersJobs component without adequate verification of user permissions or validation of the intended destination. The vulnerability leverages the url:: utility to construct targets that direct server-side HTTP requests toward specific hosts. Because the authorization check is missing at the module level, any authenticated user can inject arbitrary URLs into these job definitions, effectively bypassing standard access control mechanisms designed to prevent unauthorized system modifications.
The operational impact of this flaw is severe due to the execution context in which these scheduled jobs operate. The cron.php script executes queued SchedulersJobs with elevated or system-level privileges rather than as the restricted web server user. Consequently, when a malicious job runs, it performs server-side requests using full application permissions. This capability enables several dangerous outcomes including Server-Side Request Forgery where internal network services can be accessed and potentially exploited from within the trusted environment. The vulnerability also supports following HTTP redirects which allows attackers to obfuscate the final destination of their requests or bypass simple IP-based filtering rules.
Furthermore, the persistence mechanism inherent in scheduled jobs amplifies the risk profile significantly. Attackers can configure these malicious tasks as recurring jobs that execute at defined intervals, ensuring continued access and repeated exploitation attempts even if initial detection occurs. This persistent nature allows for long-term reconnaissance of internal infrastructure or sustained attacks against backend services such as databases, internal APIs, or other microservices that are not exposed to the public internet but remain accessible via localhost or private network interfaces. The ability to make requests to external hosts also facilitates data exfiltration channels where sensitive information retrieved from internal systems can be transmitted to attacker-controlled servers.
This vulnerability aligns with CWE-862 which describes missing authorization for a critical function, and CWE-918 regarding Server-Side Request Forgery flaws that allow attackers to leverage the server's trust relationship with other services. In terms of adversary tactics, this behavior maps closely to ATT&CK technique T1557 which covers Adversary-in-the-Middle scenarios involving LLMNR/NBT-NS poisoning and SMB relay attacks if internal network discovery is performed, as well as T1048 which involves Exfiltration Over Alternative Protocol. The exploitation chain demonstrates how a simple input validation failure in an API endpoint can escalate to full system compromise through privilege escalation during job execution.
Mitigation strategies must prioritize immediate patching of the SuiteCRM installation to version 7.15.2 or later where this authorization gap has been addressed by developers implementing proper role-based access controls for module-level operations. Organizations should also implement network segmentation to restrict outbound traffic from web servers and limit internal service accessibility to prevent lateral movement even if such vulnerabilities are exploited in other contexts. Monitoring cron job logs and scheduled task executions can provide early detection indicators of abuse, while strict input validation on all API endpoints remains essential to preventing similar injection-based attacks across the application surface area.