PatchSiren cyber security CVE debrief
CVE-2026-11407 Pimcore GmbH CVE debrief
CVE-2026-11407 is a high-severity vulnerability in Pimcore CMS/DXP version 12.3.8. It allows authenticated administrative attackers to execute arbitrary methods on PHP objects by exploiting empty checkMethodAllowed() and checkPropertyAllowed() implementations in the custom Twig SecurityPolicy. Attackers can supply malicious Twig templates through the DataObject ClassDefinition Layout/Text component to perform arbitrary file reads, execute arbitrary database queries, and potentially achieve remote code execution via PHP object gadget chains. The pimcore_* function wildcard further broadens the bypass to all Pimcore Twig functions. This vulnerability has a CVSS score of 8.6 and is considered HIGH severity.
- Vendor
- Pimcore GmbH
- Product
- Pimcore CMS/DXP
- CVSS
- HIGH 8.6
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-06-17
- Original CVE updated
- 2026-06-23
- Advisory published
- 2026-06-17
- Advisory updated
- 2026-06-23
Who should care
Administrators and security teams using Pimcore CMS/DXP version 12.3.8 should be aware of this vulnerability and take immediate action to mitigate the risk. Authenticated administrative attackers can exploit this vulnerability to execute arbitrary methods on PHP objects, potentially leading to remote code execution.
Technical summary
The vulnerability exists in the custom Twig SecurityPolicy of Pimcore CMS/DXP version 12.3.8. Specifically, the empty implementations of checkMethodAllowed() and checkPropertyAllowed() allow attackers to bypass the sandbox and execute arbitrary methods on PHP objects. This can be achieved by supplying malicious Twig templates through the DataObject ClassDefinition Layout/Text component. The vulnerability can be used to perform arbitrary file reads, execute arbitrary database queries, and potentially achieve remote code execution via PHP object gadget chains.
Defensive priority
high
Recommended defensive actions
- Update Pimcore CMS/DXP to a version that fixes the vulnerability
- Restrict access to the DataObject ClassDefinition Layout/Text component
- Implement additional security measures to monitor and detect potential attacks
- Review and update the custom Twig SecurityPolicy to prevent similar vulnerabilities
- Limit the use of pimcore_* functions in Twig templates
- Regularly review and update dependencies to ensure the latest security patches are applied
Evidence notes
The information provided is based on the CVE record and NVD details. The vulnerability was published on June 17, 2026, and modified on June 18, 2026. The CVSS score is 8.6, indicating a HIGH severity vulnerability.
Official resources
public