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8.7
CVE-2026-92593: Craft CMS lets logged‑in user execute code on server
CVE-2026-92593 · published 12 days ago
Summary
Versions of Craft CMS from 5.10.0 through 5.10.12 let a user who can log into the control panel and edit a single content type create a special link that runs their own code on the web server. This can give the attacker full control of the server. Upgrade to version 5.10.13 or later to stop this from happening.
What to do
- Update craftcms cms to version 5.10.13 or later.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| craftcms | cms | < 5.10.13 |
Original advisory text
Craft CMS 5.10.0 before 5.10.13 Authenticated Remote Code Execution
Craft CMS versions 5.10.0 through 5.10.12 contain an incomplete fix for CVE-2026-55794: the Controller::getPostedRedirectUrl() -> View::renderObjectTemplate() sink remained unsandboxed, and the same fix commit added a self-signing oracle in Cp::elementLabelHtml(). Because Craft/Yii HMAC tokens are not bound to a parameter name, an authenticated low-privilege control panel user with edit rights on a single element type can mint a token over attacker-controlled Twig for the returnUrl parameter and replay it as the redirect POST parameter, reaching the unsandboxed sink and achieving server-side template injection that executes arbitrary PHP code (full server compromise). The issue is fixed in 5.10.13.
References
- https://github.com/craftcms/cms/security/advisories/GHSA-5jmw-g85v-7jv2
- https://www.vulncheck.com/advisories/craft-cms-5.10.0-before-5.10.13-authenticat...
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92593... Vendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-92593 Vendor Advisory
Severity
8.7
High
CVSS 3.1: 8.8 (MITRE)
Exploitation
EPSS <1%
Type
CWE-94Code Injection
Timeline
Published16 Sep 2026
Updated29 Sep 2026
First seen16 Sep 2026
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