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Advisories

Grav 2.0.0 before 2.2.5 Unauthorized Page Deletion via Flex Form Directives

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Severity
high
Date
Affecting

  • grav >= 2.0.0, < 2.2.5

CWE
  • CWE-470 Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')
CVSS
7.0
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N
Credit
ffasterss, shirabe0x05
Description
Grav from 2.0.0 before 2.2.5 contains an improper access control vulnerability in FlexDirectory::dynamicFlexField() that allows page authors to call arbitrary Flex object methods via flex-*@ directives in page frontmatter. When a user with page edit rights opens the page, directives calling setStorageKey() and delete() run in their session, deleting protected pages neither account may delete.

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