CVE-2026-30279: My Location Travel Timeline RCE Flaw

CVE-2026-30279 Overview

CVE-2026-30279 is an arbitrary file overwrite vulnerability affecting Squareapps LLC My Location Travel Timeline v11.80. This security flaw allows attackers to overwrite critical internal files through the application's file import process. Successful exploitation can lead to arbitrary code execution or sensitive information exposure on the affected device.

The vulnerability stems from improper input validation during the file import functionality, enabling path traversal attacks that can manipulate files outside of the intended directory. This type of vulnerability (CWE-22: Path Traversal) represents a significant security risk for mobile applications handling user-provided file data.

Critical Impact

Attackers can overwrite critical application files via the import process, potentially achieving arbitrary code execution or accessing sensitive user data stored by the application.

Affected Products

• Squareapps LLC My Location Travel Timeline v11.80

Discovery Timeline

• 2026-03-31 - CVE CVE-2026-30279 published to NVD
• 2026-04-02 - Last updated in NVD database

Technical Details for CVE-2026-30279

Vulnerability Analysis

This vulnerability exploits inadequate path validation in the file import mechanism of My Location Travel Timeline. When users import files into the application, the software fails to properly sanitize file path components, allowing directory traversal sequences (such as ../) to escape the intended directory structure.

The local attack vector requires an attacker to either have local access to the device or socially engineer a user into importing a maliciously crafted file. The vulnerability does not require any privileges to exploit and operates without user interaction once the malicious file is processed.

Successful exploitation can result in complete compromise of application data confidentiality, integrity, and availability. An attacker could overwrite application configuration files, inject malicious code into executable paths, or access sensitive user location history and timeline data stored by the application.

Root Cause

The root cause is improper input validation (CWE-22: Improper Limitation of a Pathname to a Restricted Directory) in the file import functionality. The application fails to properly sanitize user-supplied file paths during the import process, allowing path traversal sequences to reference files and directories outside the intended storage location.

When processing imported files, the application directly concatenates user-controlled path components without verifying that the resulting path remains within the application's designated data directory. This lack of path canonicalization enables attackers to traverse directory boundaries.

Attack Vector

The attack requires local access to the device or the ability to deliver a specially crafted import file to the victim. An attacker would create a malicious file with path traversal sequences embedded in the filename or internal path references. When the victim imports this file using the My Location Travel Timeline application, the path traversal sequences cause the application to write data to unintended locations.

The attack flow typically involves crafting an import file containing path traversal sequences (e.g., ../../sensitive_file) that, when processed by the vulnerable import routine, result in files being written outside the application's sandbox. This could overwrite configuration files, cached executables, or other critical application components, potentially leading to code execution when the application next loads these files.

For detailed technical information about this vulnerability, refer to the GitHub Issue Discussion maintained by SecSys Fudan University.

Detection Methods for CVE-2026-30279

Indicators of Compromise

• Unexpected file modifications in application directories or system paths outside the application's designated data folder
• Presence of files with suspicious naming patterns containing path traversal sequences (../, ..\\) in recent import logs
• Application configuration files or internal data files with unexpected modification timestamps
• Error logs showing failed file operations in restricted directories

Detection Strategies

• Monitor file system activity for writes outside the application's designated data directory during import operations
• Implement file integrity monitoring on critical application files to detect unauthorized modifications
• Review application logs for import operations involving suspicious file paths or traversal sequences
• Deploy endpoint detection solutions capable of identifying path traversal attack patterns

Monitoring Recommendations

• Enable detailed logging for the My Location Travel Timeline application's file import functionality
• Monitor for anomalous file system access patterns, particularly writes to parent directories during import operations
• Implement SentinelOne's behavioral AI to detect suspicious file manipulation activities indicative of path traversal exploitation
• Set up alerts for modifications to critical application configuration or executable files

How to Mitigate CVE-2026-30279

Immediate Actions Required

• Avoid importing files from untrusted sources until a patch is available
• Review recently imported files and verify application integrity
• Consider temporarily disabling the file import functionality if possible
• Update to the latest version of My Location Travel Timeline when a security patch becomes available
• Use SentinelOne endpoint protection to monitor for exploitation attempts

Patch Information

No official patch information is currently available. Monitor the application's official update channels for security patches addressing this vulnerability. Users should check the Light App Homepage for application updates.

For additional technical details and ongoing discussions about this vulnerability, refer to the GitHub Issue Discussion.

Workarounds

• Disable the file import feature until an official patch is released
• Only import files from verified, trusted sources
• Implement additional file validation at the device level before allowing imports
• Use mobile device management (MDM) solutions to restrict application capabilities
• Regularly backup application data to enable recovery in case of successful exploitation

Until an official patch is available, the most effective mitigation is to avoid using the file import functionality altogether. If import functionality is required, ensure all imported files originate from trusted sources and have been validated before processing.