CVE-2025-9263 is a medium-severity vulnerability affecting versions 3.1.0 and 3.1.1 of the Xuxueli xxl-job software, specifically within the getJobsByGroup function located in the JobLogController.java source file. The vulnerability arises from improper control of resource identifiers, where the jobGroup argument can be manipulated by an attacker. This improper validation or sanitization allows an attacker to influence the resource identifiers used by the application, potentially enabling unauthorized access or manipulation of job logs or job-related data. The vulnerability can be exploited remotely without requiring user interaction or authentication, increasing the risk of exploitation. The CVSS 4.0 score is 5.3, indicating a medium severity level, with the attack vector being network-based, low attack complexity, no privileges required, and no user interaction needed. The impact primarily affects confidentiality, with limited integrity and availability impact. No known exploits are currently observed in the wild, but public disclosure of the exploit code increases the risk of future exploitation. The vulnerability is rooted in the improper handling of input parameters leading to resource identifier control issues, which could be leveraged for unauthorized data access or information disclosure within the xxl-job administrative interface or API endpoints.

For European organizations using xxl-job versions 3.1.0 or 3.1.1, this vulnerability poses a risk of unauthorized access to job scheduling data or logs, which may contain sensitive operational information. Given that xxl-job is a distributed task scheduling platform often used in enterprise environments for automating business processes, exploitation could lead to exposure of internal job configurations, schedules, or logs, potentially aiding further attacks or data leakage. While the vulnerability does not directly allow code execution or system takeover, the unauthorized access to resource identifiers could facilitate reconnaissance or lateral movement within affected environments. This risk is particularly relevant for sectors relying heavily on automated workflows, such as finance, manufacturing, and IT services. The remote exploitability without authentication increases the threat surface, especially for publicly accessible management interfaces. However, the medium severity and lack of known active exploitation reduce the immediate criticality but still warrant prompt attention to prevent escalation or chained attacks.

To mitigate CVE-2025-9263, organizations should first upgrade xxl-job to a version later than 3.1.1 once a patch is released by the vendor. In the absence of an official patch, implement strict input validation and sanitization on the jobGroup parameter at the application or web server level to prevent manipulation of resource identifiers. Restrict network access to the xxl-job administrative interfaces by implementing network segmentation, firewall rules, or VPN access to limit exposure to trusted users only. Enable logging and monitoring for unusual access patterns or repeated requests targeting the getJobsByGroup function to detect potential exploitation attempts. Additionally, conduct a thorough review of user privileges and ensure that only authorized personnel have access to the job scheduling system. Employ web application firewalls (WAFs) with custom rules to block suspicious payloads targeting the vulnerable parameter. Finally, educate development and operations teams about secure coding practices to prevent similar improper resource identifier control issues in future releases.