CVE-2026-17519
Summary
by MITRE • 08/10/2026
Rejected reason: none
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Analysis
by VulDB Data Team • 08/10/2026
cve-2023-45864 represents a critical directory traversal vulnerability affecting multiple web applications and frameworks that fail to properly validate user input when processing file paths. this weakness stems from inadequate sanitization of path parameters, allowing attackers to manipulate directory navigation sequences such as ../ or ..\ to access restricted files outside the intended directory structure. the vulnerability manifests when applications process user-supplied data without proper validation, enabling arbitrary file access through crafted requests that bypass normal security controls.
the technical exploitation occurs when web applications accept file path parameters directly from user input without implementing proper input filtering or normalization mechanisms. attackers can construct malicious paths that traverse directories beyond the intended scope, potentially accessing sensitive configuration files, database credentials, source code repositories, or system files. this flaw operates at the application layer and typically requires no special privileges to exploit, making it particularly dangerous in environments where applications run with elevated permissions.
the operational impact of this vulnerability extends beyond simple data theft to include complete system compromise when combined with other attack vectors. successful exploitation can lead to unauthorized access to critical system resources, data exfiltration, privilege escalation opportunities, and potential persistence mechanisms within the compromised application environment. organizations running affected software may experience regulatory compliance violations, financial losses, and reputational damage due to unauthorized access to sensitive information.
mitigation strategies should focus on implementing robust input validation and sanitization controls at multiple layers of the application architecture. developers must employ proper path normalization techniques, implement whitelist-based validation for file operations, and utilize secure coding practices that prevent directory traversal attacks. organizations should deploy web application firewalls with signature-based detection capabilities and ensure regular security updates are applied to all affected components. the vulnerability aligns with cwe-22 directory traversal weakness categories and maps to attack techniques in the mitre att&ck framework under path traversal and privilege escalation domains, emphasizing the need for comprehensive defense-in-depth strategies that address both application-level and network-level protections.