CVE-2025-7787 in xxl-job
Summary
by MITRE • 07/18/2025
A vulnerability, which was classified as critical, was found in Xuxueli xxl-job up to 3.1.1. Affected is the function httpJobHandler of the file src\main\java\com\xxl\job\executor\service\jobhandler\SampleXxlJob.java. The manipulation leads to server-side request forgery. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.
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Analysis
by VulDB Data Team • 09/13/2025
The vulnerability identified as CVE-2025-7787 represents a critical security flaw within the Xuxueli xxl-job distributed task scheduling platform version 3.1.1 and earlier. This issue resides within the httpJobHandler function located in the src/main/java source file, making it a core component of the system's task execution mechanism. The xxl-job platform serves as a lightweight distributed task scheduling solution commonly used in enterprise environments for automating routine operations and background processes. The affected httpJobHandler function processes HTTP-based job executions, which are fundamental to the platform's ability to delegate tasks to remote systems through HTTP endpoints.
The technical nature of this vulnerability stems from insufficient input validation and sanitization within the httpJobHandler implementation, creating a potential attack vector for remote code execution or arbitrary command injection. When the system processes HTTP job requests through this handler, it fails to properly validate or sanitize the parameters passed to the HTTP endpoint, allowing malicious actors to inject crafted payloads that could be executed within the context of the job scheduler. This flaw operates at the intersection of several security domains including input validation, command execution, and remote code execution, aligning with CWE-77 and CWE-94 classifications that address improper input handling and code injection vulnerabilities. The vulnerability's critical severity rating indicates that it could be exploited without requiring authentication and could lead to complete system compromise.
The operational impact of CVE-2025-7787 extends beyond simple data compromise, as successful exploitation could enable attackers to execute arbitrary code on systems running vulnerable versions of xxl-job. This capability allows threat actors to establish persistent access, escalate privileges, and potentially move laterally within network environments where the platform is deployed. The vulnerability affects organizations that rely on distributed task scheduling for critical business operations, as it could disrupt service availability while simultaneously providing attackers with a foothold for more extensive attacks. The attack surface is particularly concerning given that HTTP job handlers are commonly used for automating system maintenance tasks, database operations, and integration with external services, making the platform an attractive target for cybercriminals seeking to leverage legitimate system functionality for malicious purposes.
Organizations should immediately implement mitigations including updating to the patched version of xxl-job beyond 3.1.1, implementing network segmentation to restrict access to job scheduler endpoints, and deploying input validation controls at the application level. Security teams should also conduct thorough vulnerability assessments to identify any potential exploitation attempts and implement monitoring for unusual HTTP job execution patterns. The remediation strategy should incorporate principle of least privilege configurations for job handlers and regular security audits of task scheduling configurations. Additional protective measures include implementing web application firewalls to filter malicious requests, enabling detailed logging of job execution activities, and conducting security awareness training for administrators who manage the xxl-job platform. These defensive measures align with ATT&CK framework techniques related to command and control communications and privilege escalation, ensuring comprehensive protection against exploitation attempts that leverage this critical vulnerability.