Twig is a template language for PHP. In a sandbox, an attacker can access attributes of Array-like objects as they were not checked by the security policy. They are now checked via the property policy and the `__isset()` method is now called after the security check. This is a BC break. This issue has been patched in versions 3.11.2 and 3.14.1. All users are advised to upgrade. There are no known workarounds for this issue.
https://github.com/twigphp/Twig/security/advisories/GHSA-jjxq-ff2g-95vh
https://github.com/twigphp/Twig/commit/831c148e786178e5f2fde9db67266be3bf241c21
Published: 2024-11-06
Updated: 2024-11-08
Base Score: 1.7
Vector: CVSS2#AV:N/AC:H/Au:M/C:P/I:N/A:N
Severity: Low
Base Score: 2.2
Vector: CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:N
Severity: Low
Base Score: 2.1
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Severity: Low