CVE-2026-34414
HighCVSS 7.1Exploitation Probability (EPSS)
High risk85th percentile - higher than 85% of all known CVEs
Summary
A relative path traversal vulnerability in Xerte Online Toolkits versions 3.15 and earlier allows attackers to move files from project media directories to arbitrary filesystem locations via an unsanitized 'name' parameter in the rename command of the elFinder connector. This can lead to overwriting application files, stored cross-site scripting, or when combined with other vulnerabilities, unauthenticated remote code execution by moving PHP files to the application root.
Risk Assessment
The risk for the organization includes potential server compromise through placement of malicious PHP code in the application root, leading to full system takeover and data breach.
Recommendation
Immediately upgrade Xerte Online Toolkits to version 3.16 or later, which contains the fix. As a temporary measure, restrict access to the /editor/elfinder/php/connector.php endpoint to trusted users only.
Other vulnerabilities in Xerte Online Toolkits
See all- CVE-2026-34415Critical
Xerte Online Toolkits versions 3.15 and earlier have an incomplete input validation vulnerability in the elFinder connector endpoint that fails to block the .php4 extension due to an incorrect regex pattern. Unauthenticated attackers can exploit this flaw combined with authentication bypass and path traversal to upload malicious PHP code and execute arbitrary system commands on the server.
- CVE-2026-41459Medium
Xerte Online Toolkits versions 3.15 and earlier contain an information disclosure vulnerability that allows unauthenticated attackers to retrieve the full server-side filesystem path of the application root. Attackers can send a GET request to the /setup page to access the exposed root_path value rendered in the HTML response.
- CVE-2026-34413High
Xerte Online Toolkits versions 3.15 and earlier have a missing authentication vulnerability in the elFinder connector endpoint. An HTTP redirect to unauthenticated callers does not call exit() or die(), allowing PHP execution to continue and process the full request server-side.
Original NVD description (English source)
Xerte Online Toolkits versions 3.15 and earlier contain a relative path traversal vulnerability in the elFinder connector endpoint at /editor/elfinder/php/connector.php where the name parameter in rename commands is not sanitized for path traversal sequences. Attackers can supply a name value containing directory traversal sequences to move files from project media directories to arbitrary locations on the filesystem, potentially overwriting application files, achieving stored cross-site scripting, or combining with other vulnerabilities to achieve unauthenticated remote code execution by moving PHP code files to the application root.