Vulnerability · Published Jun 17, 2026 · Assigned by VulnCheck

CVE-2026-11407Pimcore CMS 12.3.8 Twig Sandbox Bypass via SecurityPolicy checkMethodAllowed

High 7.2

In plain English

A high-severity security flaw in Pimcore CMS/DXP from Pimcore GmbH. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 50% of all known vulnerabilities).

Severity (CVSS 3.1)7.2High

Exploit odds (30 days)0.6%top 50.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Pimcore CMS/DXP version 12.3.8 contains a sandbox bypass vulnerability that 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, with the pimcore_* function wildcard further broadening the bypass to all Pimcore Twig functions.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Packagist	pimcore/pimcore	no fix listed	GHSA-7p36-fq2r-4h7r
Packagist	pimcore/pimcore	no fix listed	GHSA-7p36-fq2r-4h7r

Affected products (as reported)

Vendor	Product	Versions
Pimcore GmbH	Pimcore CMS/DXP	0 – through 12.3.8

Weakness: CWE-1336 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

References

https://github.com/pimcore/pimcore/pull/19193 issue-tracking
https://github.com/pimcore/pimcore/commit/fffa7f6396329e88610db70a8652529bbc734892 patch
https://www.vulncheck.com/advisories/pimcore-cms-twig-sandbox-bypass-via-securitypolicy-checkmethodallowed third-party-advisory