Vulnerability in Craftcms Cms
CVE-2026-28695
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (47.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 47th percentile — 47.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: +0.001
Affected products
- Craftcms Cms — versions >= 5.8.7, < 5.9.0-beta.1, >= 4.0.0-RC1, < 4.17.0-beta.1
- Craftcms Craft Cms — versions 4.0.0, 5.0.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/craftcms/cms/security/advisories/GHSA-94rc-cqvm-m4pw (Exploit, Patch, Mitigation, Vendor Advisory)
- github.com/craftcms/cms/commit/e31e50849ad71638e11ea55fbd1ed90ae8f8f6e0 (Patch)
Frequently asked questions
- What is CVE-2026-28695?
- CVE-2026-28695 is a high-severity vulnerability in Craftcms Cms, classified under Improper Neutralization of Special Elements Used in a Template Engine. CVSS score: 7.2/10. Published 2026-03-04.
- How severe is CVE-2026-28695?
- High severity. CVSS v3 base score is 7.2 out of 10.
- Is CVE-2026-28695 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.