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Vulnerability · Published Sep 14, 2026 · Assigned by GitHub_M

CVE-2026-55072Pimcore: ClassDefinition UID regex missing end anchor allows SQL injection via Block.php unquoted table name

High 8.5

In plain English

A high-severity improper input validation in pimcore from pimcore. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 35% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.5High
Exploit odds (30 days)0.4%top 64.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

Pimcore is an Open Source Data & Experience Management Platform. Prior to 2026.1.5, an authenticated user with the objects permission can submit a malicious ClassDefinition UID because the name and ID validation expressions in models/DataObject/ClassDefinition.php validate only the beginning of each value. When a data object of that class containing a Block field is loaded, Block::load in models/DataObject/ClassDefinition/Data/Block.php incorporates the stored class ID into an unquoted object table identifier, allowing the UID to supply SQL syntax. The resulting query can read or modify arbitrary Pimcore database tables, including disclosure of password hashes, and the flaw represents an incomplete validation hardening because earlier work added a start anchor without enforcing the end of the identifier. This issue is fixed in version 2026.1.5.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Packagistpimcore/pimcore2026.1.5GHSA-2mhj-fhvg-v428
Packagistpimcore/pimcore12.3.9GHSA-2mhj-fhvg-v428

Affected products (as reported)

VendorProductVersions
pimcore pimcore < 2026.1.5

Weakness: CWE-20, CWE-89 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N

References