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Advisories

Joomla Unrestricted File Upload via SHTML

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severity
high
date
Affecting

  • Joomla! CMS 1.0.0 - 5.4.6, 6.0.0 - 6.1.2

  • Joomla! Framework Filesystem package 1.0.0 - 3.3.0, 4.0.0 - 4.2.0

CWE
  • CWE-434 Unrestricted Upload of File with Dangerous Type
CVSS
8.9
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Credit
Valentin Lobstein (Chocapikk)
Description
Joomla versions 1.0.0 through 5.4.7 and 6.0.0 through 6.1.2 contain an unrestricted file upload vulnerability that allows attackers to upload SHTML files by bypassing the dangerous file type blocklist. Attackers can upload malicious SHTML files to servers that execute them, leading to arbitrary code execution on the underlying system.

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