CVE-2026-34415

CRITICAL9.8

Xerte Online Toolkits File Upload RCE via elfinder Connector

Published Apr 22, 2026

Modified 5 days ago

Details

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.

References

DETECTION

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

FIX

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

FIX

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

FIX

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

WEB

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

ADVISORY