CVE-2026-71291 — Bolt CMS Server-Side Template Injection via Unsandboxed allow_twig Field Rendering
Bolt CMS renders content field values through Twig's full application-level Environment with no SandboxExtension registered anywhere in the codebase. In src/Entity/Field.php, ge…
Published: 2026-08-05 · CVSS: 8.8 · CVSS 3.1
Bolt CMS renders content field values through Twig's full application-level Environment with no SandboxExtension registered anywhere in the codebase. In src/Entity/Field.php, getTwigValue calls shouldBeRenderedAsTwig, which gates rendering only on the field definition's allow_twig flag and a regex checking for , , or ; when true, the raw field value is compiled and rendered via with no sandboxing.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7