CVE-2026-115604 in SureDash Plugin
Summary
by MITRE • 10/30/2026
Subscriber Arbitrary File Deletion in SureDash <= 1.12.3 versions.
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Analysis
by VulDB Data Team • 10/30/2026
The vulnerability identified as an arbitrary file deletion flaw within SureDash versions prior to or equal to 1.12.3 represents a critical security deficiency that allows authenticated subscribers to manipulate the underlying filesystem of the application server. This type of vulnerability typically arises from insufficient validation and sanitization of user-supplied input when processing requests related to file management operations, such as deleting uploaded assets, reports, or configuration files. In many web applications, developers implement functionality to remove temporary or obsolete files by accepting a filename parameter directly from the HTTP request without adequately verifying that the requested path resides within an expected directory structure. This lack of strict path validation creates an opportunity for attackers to exploit relative path traversal sequences, commonly known as dot-dot-slash attacks using characters like ../, to escape the designated upload or data directories and target sensitive system files located elsewhere on the server's file hierarchy.
From a technical perspective, this flaw is classified under CWE-22: Improper Limitation of a Pathname to a Restricted Directory, which falls broadly within the category of path traversal vulnerabilities. When an attacker constructs a malicious request containing carefully crafted directory traversal sequences in the filename parameter, the application may interpret these sequences as valid instructions rather than rejecting them as invalid input. Consequently, instead of deleting only files within the intended scope, the server executes deletion commands that traverse up through parent directories to reach critical system locations. This behavior is particularly dangerous because it bypasses standard access controls designed to isolate user-specific data from core application logic and operating system resources. The vulnerability leverages the principle of insufficient input validation, where the backend processing logic trusts client-side assertions regarding file location without performing server-side canonicalization or absolute path verification against a whitelist of allowed directories.
The operational impact of this arbitrary file deletion capability is severe and can lead to complete service disruption or remote code execution depending on which files are targeted. If an attacker successfully deletes essential configuration files, such as database connection strings, application settings, or authentication modules, the SureDash instance may become unavailable, resulting in a denial of service for all users relying on the platform. Furthermore, if the vulnerable file deletion function interacts with system-level components or allows overwriting critical binaries through subsequent upload mechanisms that might be present elsewhere in the codebase, it could facilitate more advanced attacks such as remote code execution. Even without achieving full compromise, the ability to delete arbitrary files undermines data integrity and availability, which are core tenets of the CIA triad in information security. Attackers with subscriber-level access can escalate their privileges effectively by disrupting service operations or causing significant reputational damage through persistent unavailability of critical dashboards and analytics reports.
Mitigation strategies for this vulnerability require a multi-layered approach focusing on strict input validation, secure coding practices, and operational hardening. The primary remediation involves implementing robust path canonicalization techniques where the application resolves all file paths to their absolute equivalents before performing any filesystem operations. Developers must ensure that the resolved absolute path starts with an expected base directory prefix, thereby preventing traversal outside of authorized boundaries regardless of input manipulation. Additionally, employing a whitelist approach for allowed filenames and extensions can further restrict malicious inputs. On the infrastructure side, applying least-privilege principles to the application process ensures that even if file deletion occurs, the impact is limited to specific user-owned directories rather than system-wide files. Regular security audits focusing on CWE-22 patterns and integrating static analysis tools into the development pipeline can help detect such flaws early in the software lifecycle before deployment.