CVE-2026-108799 in XCMS
Summary
by MITRE • 10/12/2026
A vulnerability was determined in jackq XCMS up to 3fab5342cc509945a7ce1b8ec39d19f701b89261. Impacted is the function PublicController::sendFindPwdMail of the file Admin/Home/Controller/PublicController.class.php of the component Password Recovery Mail Endpoint. This manipulation of the argument email causes sql injection. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized.
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Analysis
by VulDB Data Team • 10/12/2026
The vulnerability identified in jackq XCMS prior to commit 3fab5342cc509945a7ce1b8ec39d19f701b89261 represents a critical security flaw within the application's password recovery mechanism. Specifically, the issue resides in the PublicController::sendFindPwdMail function located in the Admin/Home/Controller/PublicController.class.php file. This component serves as the Password Recovery Mail Endpoint, which is designed to handle user requests for account restoration by sending authentication links or codes via email. The core technical flaw involves a failure to properly sanitize and validate input data before it is processed within database queries. When an attacker provides a maliciously crafted value in the email argument, they can inject arbitrary SQL commands into the backend query structure. This type of vulnerability falls squarely under CWE-89, which defines Improper Neutralization of Special Elements used in an SQL Command, commonly known as SQL Injection. The lack of parameterized queries or adequate escaping mechanisms allows external input to alter the logic of database operations, compromising the integrity and confidentiality of the underlying data store.
The operational impact of this vulnerability is severe due to its remote exploitable nature. Since the password recovery endpoint is typically accessible over a network interface without requiring prior authentication, attackers can initiate attacks from any location with internet connectivity. The public disclosure of exploit code significantly lowers the barrier for entry, enabling less sophisticated threat actors to leverage existing tools against vulnerable instances. Successful exploitation could lead to unauthorized access to sensitive user data, including email addresses and potentially hashed passwords if further queries are manipulated to extract such information. Additionally, attackers may use this vector to perform database enumeration, modify application configurations, or even achieve remote code execution depending on the specific capabilities of the underlying Database Management System and its configuration privileges. This compromises not only individual user accounts but also the overall trustworthiness and availability of the XCMS platform for legitimate users.
From a threat intelligence perspective, this vulnerability aligns with MITRE ATT&CK techniques related to SQL Injection attacks used in conjunction with Initial Access or Credential Dumping strategies. Attackers often target password reset functionality because it is a high-value entry point that bypasses standard authentication controls. The presence of publicly available exploits increases the likelihood of automated scanning and opportunistic attacks against exposed instances of jackq XCMS. Organizations relying on this version must recognize that the risk level has escalated from theoretical to practical, necessitating immediate remediation actions rather than long-term planning cycles.
Mitigation strategies should focus primarily on upgrading the software to a patched version where commit 3fab5342cc509945a7ce1b8ec39d19f701b89261 or later is implemented, as this specific revision addresses the input validation flaws in the PublicController. For environments where immediate upgrading is not feasible due to operational constraints, temporary mitigations include implementing a Web Application Firewall with rules specifically tuned to detect and block SQL injection patterns within email parameters. Additionally, developers should review all database interaction code across the application to ensure that prepared statements or parameterized queries are consistently used instead of string concatenation for building SQL commands. Input validation should also be strengthened by enforcing strict type checking and length limits on the email field to reject malformed inputs before they reach the data access layer. Regular security audits and penetration testing focused on authentication flows will help identify similar weaknesses in other parts of the application ecosystem.