CVE-2026-30285: Zora App RCE Vulnerability via File Overwrite

CVE-2026-30285 Overview

An arbitrary file overwrite vulnerability has been identified in Zora: Post, Trade, Earn Crypto v2.60.0. This critical path traversal flaw (CWE-22) allows attackers to overwrite critical internal files via the file import process, potentially leading to arbitrary code execution or sensitive information exposure.

Critical Impact

This vulnerability enables attackers to overwrite arbitrary files on the target system through the file import functionality, which can result in remote code execution or unauthorized access to sensitive data.

Affected Products

• Zora: Post, Trade, Earn Crypto v2.60.0

Discovery Timeline

• 2026-03-31 - CVE CVE-2026-30285 published to NVD
• 2026-04-02 - Last updated in NVD database

Technical Details for CVE-2026-30285

Vulnerability Analysis

This vulnerability is classified as a path traversal issue (CWE-22: Improper Limitation of a Pathname to a Restricted Directory). The flaw exists within the file import process of the Zora cryptocurrency application. When users import files, the application fails to properly validate and sanitize file paths, allowing attackers to traverse directories and overwrite files outside of the intended directory structure.

The vulnerability can be exploited remotely without authentication, requiring no user interaction. An attacker can craft a malicious import file containing path traversal sequences (such as ../) that bypass directory restrictions, enabling them to write to arbitrary locations on the file system. This can be leveraged to overwrite critical application files, configuration data, or inject malicious code that executes with the application's privileges.

Root Cause

The root cause of this vulnerability is improper input validation during the file import process. The application does not adequately sanitize user-supplied file paths, failing to neutralize special path characters and traversal sequences. This allows attackers to escape the intended import directory and write files to arbitrary locations on the system.

Attack Vector

The attack is conducted over the network, targeting the file import functionality of the Zora application. An attacker crafts a malicious file import request containing path traversal sequences designed to escape directory boundaries. When processed by the vulnerable application, the traversal sequences allow the attacker to specify arbitrary file paths for writing content.

The import process accepts file paths without proper validation, enabling sequences like ../../ to navigate the directory structure and target sensitive system or application files. Successful exploitation can lead to overwriting critical configuration files, injecting malicious scripts, or replacing executable components to achieve code execution.

For detailed technical analysis, see the GitHub Issue Discussion published by the Fudan University Security Systems research team.

Detection Methods for CVE-2026-30285

Indicators of Compromise

• Unexpected file modifications in critical application directories or system paths
• Log entries showing file import operations with unusual path patterns containing ../ sequences
• Modified or corrupted application configuration files that have unexpected timestamps
• Presence of unauthorized executable files or scripts in application directories

Detection Strategies

• Implement file integrity monitoring (FIM) to detect unauthorized modifications to critical application and system files
• Monitor application logs for file import requests containing path traversal patterns such as ../, ..\\, or encoded variants
• Deploy web application firewalls (WAF) or application-layer filtering to detect and block requests with path traversal sequences
• Review file system audit logs for write operations outside expected application directories

Monitoring Recommendations

• Enable detailed logging for all file import operations, capturing full file paths and user context
• Configure alerts for any file operations targeting sensitive directories such as /etc/, /bin/, or application root directories
• Implement real-time monitoring for changes to application executables and configuration files
• Regularly audit file permissions to ensure the application operates with least privilege principles

How to Mitigate CVE-2026-30285

Immediate Actions Required

• Disable or restrict access to the file import functionality until a patch is applied
• Implement strict input validation to reject any file paths containing traversal sequences
• Apply the principle of least privilege to limit the application's file system permissions
• Review system and application logs for signs of prior exploitation attempts

Patch Information

Users should monitor the official Zora platform for security updates addressing this vulnerability. No vendor advisory has been published at the time of this writing. Check the GitHub Issue Discussion for updates on mitigation strategies and potential fixes.

Workarounds

• Restrict access to the file import feature to trusted users only
• Implement application-level path validation to sanitize and normalize all file path inputs
• Use allowlist-based validation to ensure imported files are only written to expected directories
• Deploy network segmentation to limit exposure of vulnerable systems to untrusted networks

# Example: Restrict file permissions on critical directories
chmod 755 /app/imports/
chown -R appuser:appgroup /app/imports/
# Ensure imported files cannot escape to parent directories