CVE-2026-107025 in WikiAndPad alpha
Summary
by MITRE • 10/29/2026
Insecure permissions in WikiAndPad alpha/beta v0.2alpha03 (versionCode 200300) allows unauthorized attackers to export the application's data.
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Analysis
by VulDB Data Team • 10/29/2026
The vulnerability identified in WikiAndPad versions prior to or including alpha/beta v0.2alpha03, specifically version code 200300, stems from a fundamental misconfiguration of file system permissions within the Android operating environment. This flaw is classified under CWE-732 as Incorrect Permission Assignment for Critical Resource, indicating that the application failed to restrict access to sensitive data files using appropriate security controls. In many cases involving such insecure configurations, developers may inadvertently set the default exportable flag or world-readable and writable flags on internal storage directories where user-generated content like notes, documents, and metadata are stored. This oversight allows any other installed application on the same device with no special permissions to read these files directly from the file system, bypassing the intended sandbox isolation that Android typically enforces between applications.
From a technical perspective, this vulnerability exploits the lack of strict access control lists or proper use of MODE_PRIVATE flags when creating internal storage files. When an application does not explicitly define restrictive permissions for its data directories, the operating system defaults to allowing broader access than necessary for secure operation. An attacker with minimal privileges can enumerate these accessible paths and extract sensitive information without triggering any security alerts or requiring user interaction beyond initial installation if malicious apps are present on the device. This scenario is particularly dangerous in shared devices or environments where users install applications from untrusted sources, as it creates a persistent data leakage channel that persists even after the vulnerable application has been closed or terminated.
The operational impact of this vulnerability is significant for end-users who rely on WikiAndPad to store personal notes, professional documents, and other confidential information. Unauthorized access to these files can lead to severe privacy violations, including the exposure of intellectual property, personal identifiers, or sensitive business strategies. Furthermore, if the exported data contains authentication tokens or session cookies stored alongside application preferences, attackers could potentially hijack user sessions or gain unauthorized access to linked online services associated with the account. This aligns with MITRE ATT&CK technique T1530, Data from Local System, where adversaries collect data directly from local devices without remote execution capabilities, demonstrating a low-barrier entry point for information gathering attacks within mobile ecosystems.
To mitigate this vulnerability, developers must immediately update the application to ensure that all internal files are created with MODE_PRIVATE permissions, which restricts access exclusively to the creating application. It is also critical to audit any external storage usage and apply strict read-write restrictions if such functionality is required by design. For users currently running version 200300 or earlier alpha/beta builds, it is strongly recommended to uninstall the vulnerable version and wait for a patched release that addresses these permission issues. Additionally, enabling Google Play Protect and avoiding sideloading of applications can reduce the risk of exploitation by limiting the number of potentially malicious apps capable of accessing insecurely configured file systems on the device.