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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 i…

Critical CVSS 9.8
CVECVE-2026-34415
First seen2026-07-14 23:15 UTC
Disclosed2026-04-22 19:17 UTC
Last updated2026-07-14 23:15 UTC
Channel statusauto

Summary

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.

In-depth triage · Auto channel

No in-depth report has been generated yet (DR-003 v2 AI pipeline is under construction).

Lint boundary warnings (2)

The following non-blocking warnings were raised during the lint phase of this triage (e.g. reference URLs not yet on the allowlist). They do not affect entry usability and are disclosed for transparency (see DR-002).

  • REF_URL_NOT_ALLOWLISTED url not in allowlist: https://xerte.org.uk/index.php/en/downloads-1/category/3-xerte-online-toolkits
  • REF_URL_NOT_ALLOWLISTED url not in allowlist: https://xerte.org.uk/xertetoolkits_3.15_ChangeLog.html

Sources

  • NVD DATABASE

Original Links

Timeline

  1. nvd_ingest NVD