CVE-2026-34413

Description

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.

References

https://xerte.org.uk/xertetoolkits_3.15_ChangeLog.html

https://xerte.org.uk/index.php/en/downloads-1/category/3-xerte-online-toolkits

https://www.vulncheck.com/advisories/xerte-online-toolkits-missing-authentication-via-connector-php

https://github.com/thexerteproject/xerteonlinetoolkits/issues/1527

https://github.com/thexerteproject/xerteonlinetoolkits/commit/507d55c5e91bf9310b5b1c7fad8aebfef902ad23

https://github.com/thexerteproject/xerteonlinetoolkits/commit/17e4f945fe6a3400fa88c01eda18c1075ee4a212

https://github.com/thexerteproject/xerteonlinetoolkits/commit/02661be88cc369325ea01b508086bde7fbfec805

https://github.com/bootstrapbool/xerteonlinetoolkits-rce

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

CVSS v4

EPSS