SEPTEMBER 15, 2026
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Case File

CVE-2026-55220

CRITICAL · CVSS 9.3 EPSS 0.50% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-28 · Last synced 2026-09-15

CyberRota Analysis

AI-Generated

Pimcore versions prior to 11.5.19, 12.3.10, and 2026.1.6 are vulnerable due to improper handling of PHP serialized data in the Hotspotimage class, allowing attackers to exploit this flaw for arbitrary file writes or code execution. This vulnerability requires an attacker to have the ability to write crafted serialized data into the affected object-store column. Organizations using affected versions of Pimcore should prioritize patching to mitigate the risk of exploitation.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
code execution

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-55220
Severity
CRITICAL
CVSS
9.3
EPSS
0.50%

Original NVD Description

Pimcore is an Open Source Data & Experience Management Platform. Prior to 11.5.19, 12.3.10, and 2026.1.6, Pimcore\Model\DataObject\ClassDefinition\Data\Hotspotimage::getDataFromResource() in models/DataObject/ClassDefinition/Data/Hotspotimage.php passes the field __hotspots object-store column to Pimcore\Tool\Serialize::unserialize() without an allowed-classes restriction after JSON decoding fails. An attacker with a separate capability to write crafted PHP serialized bytes into that column can instantiate available classes and trigger magic methods when an affected DataObject is loaded, which can produce arbitrary file writes or code execution through bundled gadget chains. The related ImageGallery, Block, and Video callers use the same fallback pattern, but the identified June fix changes the Hotspotimage caller only. This issue is fixed for Hotspotimage in versions 11.5.19, 12.3.10, and 2026.1.6.