CVE-2026-34415 Xerte Online Toolkits File Upload RCE via elfinder Connector
Unauthenticated attackers can upload malicious PHP files via elFinder connector to execute arbitrary commands on the server.
- 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-2026-34415?
CVE-2026-34415 is a critical 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 an incomplete input validation vulnerability in the elFinder connector endpoint that fails to block PHP-executable extensions .php4 due to an incorrect regex pattern. Unauthenticated attackers can exploit this flaw combined with authentication bypass and path traversal vulnerabilities to upload malicious PHP code, rename it with a .php4 extension, and execute arbitrary operating system commands on the server.
Weakness: CWE-184
Which versions are affected by CVE-2026-34415?
How do I fix CVE-2026-34415?
No fix has been published for CVE-2026-34415 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-34415 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-34415 exists.
Public exploit code: 1 Metasploit module.
Sources
Also known as GHSA-67j3-r63p-59hf.