CVE-2026-46640

A flaw was found in Twig, a template language for PHP. An attacker with low privileges could exploit a vulnerability in the self. and import-alias dynamic attribute syntax. By concatenating a malicious string into a MacroReferenceExpression name without proper validation, the attacker can cause r...

Twig: Arbitrary PHP code execution via `_self.(<string>)` macro-reference compilation

Description The obj.expr dynamic-attribute syntax added in 3.15.0 as the replacement for the deprecated attribute function lets the attribute be an arbitrary expression. When the receiver is self or any % import % alias and the parenthesised expression is a string literal, DotExpressionParser...