What’s Vulnerable › Vulnerabilities

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

• Severity: high (CVSS 8.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-17 · updated 2026-07-22
• Weakness: CWE-502

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 products

• pimcore/pimcore: before 11.5.17; from 12.0.0, < 12.3.7

References

• https://github.com/pimcore/pimcore/commit/4788bf3a3a7f2f760a8fe61e522565941e154e1e
• https://github.com/pimcore/pimcore/pull/19119
• https://github.com/pimcore/pimcore/releases/tag/v12.3.7
• https://github.com/pimcore/pimcore/security/advisories/GHSA-36fc-7wjg-mfvj

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