CVE-2026-102247 in FastAdmin
Summary
by MITRE • 09/29/2026
A vulnerability was detected in FastAdmin 1.6.1.20250430/1.6.5.20260602. This affects an unknown function of the file application/database.php of the component Database Management. The manipulation results in execution with unnecessary privileges. The attack may be launched remotely. The exploit is now public and may be used.
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Analysis
by VulDB Data Team • 09/29/2026
The vulnerability identified in FastAdmin versions 1.6.1.20250430 through 1.6.5.20260602 represents a critical security flaw within the application's database management component, specifically located in the file application/database.php. This defect allows an attacker to manipulate internal functions responsible for handling database connections or queries, resulting in unauthorized privilege escalation. The core issue stems from insufficient validation of input parameters passed to these database-related functions, which enables remote attackers to execute commands with higher privileges than intended by the system architecture. Because this vulnerability resides within a fundamental component that handles data persistence and retrieval, its exploitation can compromise the integrity and confidentiality of the entire application environment.
From a technical perspective, the flaw likely involves improper handling of user-supplied input during database operations, such as query construction or connection parameter processing. This misconfiguration permits an attacker to bypass standard access controls, effectively gaining administrative-level access or executing arbitrary code within the context of the web server process. The presence of this vulnerability in application/database.php suggests that the issue may be related to how FastAdmin processes dynamic queries or manages database credentials and configurations remotely. Since the exploit is now public, threat actors can leverage known techniques to trigger these unintended privilege elevations without requiring prior authentication in many scenarios, significantly lowering the barrier for entry into vulnerable systems.
The operational impact of this vulnerability is severe, as it directly undermines the principle of least privilege that underpins secure software design. An attacker who successfully exploits this flaw could gain full control over the underlying database server, leading to data exfiltration, modification of critical application records, or complete system compromise if further lateral movement is possible. The ability to execute actions with unnecessary privileges means that even minor misconfigurations in other parts of the application can be amplified into catastrophic security breaches. Given that FastAdmin is a widely used PHP-based framework for building admin panels and web applications, this vulnerability poses a substantial risk to organizations relying on it for their backend infrastructure.
This incident aligns closely with Common Weakness Enumeration (CWE) categories such as CWE-269 Improper Privilege Management and CWE-78 OS Command Injection if the privilege escalation leads to command execution. Additionally, from an offensive security standpoint, this vulnerability maps to MITRE ATT&CK techniques related to Initial Access via web application attacks and Privilege Escalation through exploitation of software vulnerabilities. The public availability of exploits indicates that automated scanning tools and malicious scripts are likely already targeting systems running affected versions, making immediate remediation essential for maintaining operational security posture.
To mitigate this risk, administrators must immediately upgrade FastAdmin to a patched version where the input validation in application/database.php has been corrected. If upgrading is not feasible due to compatibility constraints, implementing strict web application firewall rules can help filter malicious payloads targeting database endpoints before they reach the vulnerable code path. It is also critical to review recent server logs for signs of exploitation attempts and ensure that database accounts used by the application operate with minimal required permissions rather than broad administrative rights. Regular security audits and adherence to secure coding practices will further reduce the likelihood of similar privilege escalation flaws in future development cycles.