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Advisories

Craft CMS - Authenticated Path Traversal in assets/icon Extension Parameter

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severity
medium
date
Affecting

  • cms >= 4.0.0-RC1, < 4.17.7

  • cms >= 5.0.0-RC1, < 5.9.13

CWE
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVSS
7.1
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Credit
GCXWLP
Description
Craft CMS from 4.0.0-RC1 contains an authenticated path traversal vulnerability in the assets/icon endpoint where the extension parameter is not validated before file existence checks. Attackers can bypass extension validation by passing traversal sequences that resolve to existing SVG files, allowing local file read access.

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