CVE-2026-34413 Xerte Online Toolkits Missing Authentication via connector.php
Unauthenticated attackers can perform file operations and potentially achieve remote code execution due to missing authentication in the elFinder connector endpoint.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-34413?
CVE-2026-34413 is a high-severity missing authorization vulnerability in thexerteproject xerteonlinetoolkits, published on 22 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-497
Which versions are affected by CVE-2026-34413?
How do I fix CVE-2026-34413?
No fix has been published for CVE-2026-34413 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-34413 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-34413 exists.
Public exploit code: 1 Metasploit module and 1 Nuclei template.
Sources
Also known as GHSA-g35c-vgp7-f8qm.