CVE-2026-28697

critical · 9.4

Craft is a content management system (CMS). Prior to 4.17.0-beta.1 and 5.9.0-beta.1, an authenticated administrator can achieve Remote Code Execution (RCE) by injecting a Server-Side Template Injection (SSTI) payload into Twig template fields (e.g., Email Templates). By calling the craft.app.fs.write() method, an attacker can write a malicious PHP script to a web-accessible directory and subsequently access it via the browser to execute arbitrary system commands. This vulnerability is fixed in 4.17.0-beta.1 and 5.9.0-beta.1.

9.4

CVSS

1.1%

EPSS (exploit prob.)

63rd

EPSS percentile

2026-03-04

Published

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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

Weaknesses

CWE-1336

Affected products

Vendor	Product	Affected versions
craftcms	craft_cms	> 4.0.0, < 4.17.0
craftcms	craft_cms	> 5.0.0, < 5.9.0
craftcms	craft_cms	4.0.0
craftcms	craft_cms	4.0.0
craftcms	craft_cms	4.0.0
craftcms	craft_cms	4.0.0
craftcms	craft_cms	5.0.0
craftcms	craft_cms	5.0.0

Check a specific version with /api/v1/cve/match.

References

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-28697