CVE-2026-65943 in RO CSVI Extension
Summary
by MITRE • 07/29/2026
Joomla Extension - rolandd.com - Unauthenticated directory creation RO CSVI < 9.11.0
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Analysis
by VulDB Data Team • 07/29/2026
This vulnerability affects the Joomla extension RO CSV Importer developed by rolandd.com and specifically impacts versions prior to 9.11.0. The flaw represents a critical directory traversal and unauthorized file system manipulation issue that allows attackers to create arbitrary directories on the target server without requiring authentication credentials. The vulnerability stems from insufficient input validation and access control mechanisms within the extension's file management functions, enabling remote attackers to exploit this weakness through crafted requests that bypass normal authorization checks.
The technical implementation of this vulnerability exploits a common pattern of insecure direct object reference where the application fails to properly validate user-supplied directory paths before executing file system operations. Attackers can leverage this weakness by sending specially crafted HTTP requests containing malicious directory names that traverse the file system hierarchy, ultimately allowing creation of directories in arbitrary locations accessible to the web server process. This represents a classic path traversal vulnerability classified under CWE-22 and falls within the ATT&CK technique T1059.007 for command and scripting interpreter execution.
The operational impact of this vulnerability is severe as it provides attackers with persistent access to the target system through directory creation capabilities. Once exploited, attackers can establish backdoor persistence mechanisms by creating directories containing malicious files or scripts that can be executed later through web server processes. This vulnerability enables attackers to compromise the entire Joomla installation and potentially escalate privileges to other applications running on the same server. The unauthenticated nature of this exploit means that any remote user can leverage it without requiring valid credentials, making it particularly dangerous in production environments.
Mitigation strategies should focus on immediate remediation through updating the RO CSV Importer extension to version 9.11.0 or later where the vulnerability has been patched. Organizations should also implement network-level restrictions to limit access to administrative interfaces and file upload functions. Additional protective measures include implementing proper input validation at multiple layers, enforcing strict access controls for file system operations, and monitoring for suspicious directory creation patterns. Security professionals should consider implementing web application firewalls with rules specifically designed to detect and block path traversal attempts, while also conducting regular security assessments to identify similar vulnerabilities in other third-party extensions. The vulnerability demonstrates the importance of maintaining up-to-date software components and implementing defense-in-depth strategies to protect against unauthorized file system manipulations.