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Advisory record · GHSA-w23p-wrp7-ch38

Pimcore Hotspotimage getDataFromResource() unrestricted Serialize::unserialize over object-store column (PHP Object Injection, CWE-502)

CVSS 9.3 CriticalCriticalEPSS 0.0068 · 52nd percentile

Critical, because:

  • CVSS score 9.3: 9.0 or more.

How we decide what’s critical

Published by the GitHub Advisory Database at 28 Aug 2026, 19:13 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
pimcore/pimcorePackagist>=2026.1.0, <2026.1.6 || <12.3.102026.1.6, 12.3.10
Identifiers
GHSA-w23p-wrp7-ch38 · CVE-2026-55220 · PKSA-kkjc-bw16-f3kq
Weakness (CWE)
CWE-502
Tags
Published
28 Aug 2026
Updated
28 Aug 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Pimcore (pimcore/pimcore) versions before 12.3.10, and 2026.1.0 up to but not including 2026.1.6, unserialize the hotspot data of Hotspotimage fields without a class allowlist. An attacker who can write crafted serialized data to that storage column could trigger PHP object injection when the object is loaded, which the source says can lead to remote code execution via bundled dependencies. Upgrade to 12.3.10 or 2026.1.6.

Written 31 Oct 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
9.3 Critical 4.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0068, the 52nd percentile, on 9 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:06 UTC First seen by agentprime
  2. 31 Oct 2026, 14:06 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.