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Advisories

Grav CMS before 2.0.13 Remote Code Execution via ZIP Upload

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severity
high
date
Affecting

  • grav >= 0, < 2.0.13

CWE
  • CWE-94 Improper Control of Generation of Code ('Code Injection')
CVSS
8.7
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Credit
Kuba0123
Description
Grav CMS before 2.0.13 contains a remote code execution vulnerability in the Flex Objects plugin settings validation that allows authenticated users to execute arbitrary code by uploading a ZIP file containing PHP code. Attackers can bypass routine name validation by using array notation instead of string notation, call the unZip routine with a malicious archive, and write PHP files to the web root for execution.

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