CVE-2026-28695
Craft affected by authenticated RCE via Twig SSTI - create() function + Symfony Process gadget
HIGH 7.5EPSS 0.6%
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.
- Affected
- craftcms · cms
- CVSS v4.0 GITHUB
- 7.5 HIGH
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS v4.0 GitHub
- 6.6 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P - CVSS v3.1 NVD
- 7.2 HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - EPSS
- 0.63% chance of exploitation in the next 30 days, 49th percentile
- Published
- 2026-03-04
- Updated
- 2026-03-06
Proof-of-concept exploits (2)
- advisories/GHSA-94rc-cqvm-m4pw
- predyy/CVE-2026-2869513★ · 2026-09-27
Security advisories
- craftcms/cms/security/advisories/GHSA-94rc-cqvm-m4pw
- craftcms/cms/commit/e31e50849ad71638e11ea55fbd1ed90ae8f8f6e0