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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.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-11407 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-11407

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-11407 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-11407

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.