Xerte Online Toolkits versions 3.15 and earlier expose the elFinder file manager connector at /editor/elfinder/php/connector.php without authentication (CVE-2026-34413), because the access-control redirect for unauthenticated users does not call exit()/die() and execution continues server-side. This is chained with a relative path traversal in the elFinder rename command (CVE-2026-34414) and an incomplete file-extension blocklist that still permits .php4 (CVE-2026-34415) to write an attacker-controlled PHP file into the application root, resulting in unauthenticated remote code execution.
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