CVE-2026-28695

EUVD-2026-9421
Craft is a content management system (CMS). There is an authenticated admin RCE in Craft CMS 5.8.21 via Server-Side Template Injection using the create() Twig function combined with a Symfony Process gadget chain. The create() Twig function exposes Craft::createObject(), which allows instantiation of arbitrary PHP classes with constructor arguments. Combined with the bundled symfony/process dependency, this enables RCE. This bypasses the fix implemented for CVE-2025-57811 (patched in 5.8.7). This vulnerability is fixed in 5.9.0-beta.1 and 4.17.0-beta.1.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.2 HIGH
NETWORK
LOW
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Affected Products (NVD)
VendorProductVersion
craftcmscraft_cms
4.0.0 <
𝑥
< 4.17.0
craftcmscraft_cms
5.0.0 <
𝑥
< 5.9.0
craftcmscraft_cms
4.0.0
craftcmscraft_cms
4.0.0:rc1
craftcmscraft_cms
4.0.0:rc2
craftcmscraft_cms
4.0.0:rc3
craftcmscraft_cms
5.0.0
craftcmscraft_cms
5.0.0:rc1
𝑥
= Vulnerable software versions