CVE-2026-63162 in Agora Project
Summary
by MITRE • 10/15/2026
Omnispace Agora Project before 26.10.0 contains a path traversal vulnerability that allows attackers to write arbitrary files outside the intended temporary directory by supplying an unanchored tmpFolderName value in the upload destination path. Attackers can exploit this flaw, for example by setting tmpFolderName to a traversal sequence targeting the web root, to write attacker-controlled files and achieve remote code execution.
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Analysis
by VulDB Data Team • 10/15/2026
The Omnispace Agora Project prior to version 26.10.0 contains a critical path traversal vulnerability that stems from insufficient validation of user-supplied input within its file upload mechanism. This flaw specifically affects the handling of the tmpFolderName parameter, which is intended to define the temporary directory for storing uploaded files. The underlying technical issue arises because the application fails to anchor or strictly validate this folder name against a predefined whitelist of allowed directories. Consequently, an attacker can manipulate the input by injecting path traversal sequences, such as dot-dot-slash characters, into the tmpFolderName value. This manipulation allows the file system operations to escape the intended temporary directory and write files to arbitrary locations on the server's file system.
The operational impact of this vulnerability is severe, primarily because it facilitates remote code execution under specific conditions. By successfully writing attacker-controlled content outside the restricted directory, an adversary can target sensitive areas such as the web root or other executable directories where uploaded scripts are processed by the underlying web server. If the application permits the upload and subsequent execution of script files in these locations, the vulnerability becomes a direct pathway for full system compromise. This aligns with Common Weakness Enumeration (CWE) category CWE-22: Improper Limitation of a Pathname to a Restricted Directory, which describes flaws where software does not properly neutralize special elements within file paths that can cause files to be located outside of the intended directory.
From an offensive security perspective, this vulnerability maps directly to MITRE ATT&CK technique T1505.003: Web Shell, specifically under the broader category of Server Software Components. Attackers typically exploit such path traversal flaws by uploading a malicious web shell or backdoor script into a publicly accessible directory. Once uploaded and executed, these scripts provide persistent access to the compromised system, allowing for further lateral movement, data exfiltration, or disruption of services. The lack of input sanitization in the tmpFolderName parameter represents a classic example of insecure direct object reference combined with path traversal, highlighting the necessity for strict validation controls on all file system interactions.
To mitigate this vulnerability, organizations running versions of Omnispace Agora Project before 26.10.0 should immediately upgrade to the patched version where these input validations have been corrected. In environments where upgrading is not immediately feasible, defensive measures must be implemented at the infrastructure level. This includes configuring web servers and application firewalls to block requests containing path traversal sequences in file upload parameters. Additionally, implementing strict allow-listing for temporary directories and ensuring that uploaded files are stored outside of executable paths can significantly reduce the risk of remote code execution. Regular security audits focusing on input validation logic within file handling modules are also recommended to prevent similar weaknesses from being introduced or overlooked in future updates.