Log in Start free

Vulnerability · Published Jul 17, 2026 · Assigned by GitHub_M

CVE-2026-45162Pimcore: Unsafe PHP Deserialization in Multiple Locations Without allowed_classes Restriction

High 8.0

In plain English

A high-severity unsafe deserialization in pimcore from pimcore. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 63% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.0High
Exploit odds (30 days)1.0%top 37.4% 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 11.5.17 (LTS) and 12.3.7, multiple Pimcore locations call PHP's unserialize() on data from database columns and filesystem files without the allowed_classes restriction, including lib/Tool/Authentication.php, models/Site/Dao.php, models/DataObject/ClassDefinition/CustomLayout/Dao.php, models/Tool/TmpStore/Dao.php, models/Asset/WebDAV/Service.php, and admin-ui-classic-bundle/src/Helper/Dashboard.php, enabling object injection and remote code execution if an attacker can control the serialized data source. This issue is fixed in versions 11.5.17 (LTS) and 12.3.7.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Packagistpimcore/pimcore12.3.7GHSA-36fc-7wjg-mfvj
Packagistpimcore/pimcore11.5.17GHSA-36fc-7wjg-mfvj
Packagistpimcore/pimcore2026.1.3GHSA-36fc-7wjg-mfvj

Affected products (as reported)

VendorProductVersions
pimcore pimcore < 11.5.17>= 12.0.0, < 12.3.7

Weakness: CWE-502 · Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

References