CVE-2026-34413

Xerte Online Toolkits versions 3.15 and earlier contain a missing authentication vulnerability in the elFinder connector endpoint at /editor/elfinder/php/connector.php where an HTTP redirect to unauthenticated callers does not call exit() or die(), allowing PHP execution to continue and process the full request server-side. Unauthenticated attackers can perform file operations on project media directories including creating directories, uploading files, renaming files, duplicating files, overwriting files, and deleting files, which can be chained with path traversal and extension blocklist vulnerabilities to achieve remote code execution and arbitrary file read.

The following products are affected by CVE-2026-34413 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-34413.

URL	Resource
https://github.com/bootstrapbool/xerteonlinetoolkits-rce
https://github.com/thexerteproject/xerteonlinetoolkits/commit/02661be88cc369325ea01b508086bde7fbfec805
https://github.com/thexerteproject/xerteonlinetoolkits/commit/17e4f945fe6a3400fa88c01eda18c1075ee4a212
https://github.com/thexerteproject/xerteonlinetoolkits/commit/507d55c5e91bf9310b5b1c7fad8aebfef902ad23
https://github.com/thexerteproject/xerteonlinetoolkits/issues/1527
https://www.vulncheck.com/advisories/xerte-online-toolkits-missing-authentication-via-connector-php
https://xerte.org.uk/index.php/en/downloads-1/category/3-xerte-online-toolkits
https://xerte.org.uk/xertetoolkits_3.15_ChangeLog.html