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Advisories

Twig 2.16.x & 3.9.0-3.25.x Sandbox Bypass via SourcePolicyInterface

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severity
high
date
Affecting

  • Twig 2.16.x, 3.9.0 < 3.26.0

CWE
  • CWE-693 Protection Mechanism Failure
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
Nicolò Ribaudo
Description
Twig versions 2.16.x and 3.9.0 through 3.25.x contain a sandbox bypass vulnerability when using a SourcePolicyInterface that allows attackers with template rendering capabilities to pass arbitrary PHP callables to sort, filter, map, and reduce filters. Attackers can exploit the runtime check that fails to use the current template source to bypass sandbox restrictions and execute arbitrary code when the sandbox is enabled through a source policy rather than globally.

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