CVE-2026-71291

EUVD-2026-53376
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
TuranSecCNA
8.8 HIGH
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 23.46%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
boltbolt
𝑥
≤ 6.1
CNA
Common Weakness Enumeration
References
https://github.com/bolt/core
https://github.com/bolt/core/blob/6.1/src/Entity/Field.php