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Not in CISA KEV
HIGH severity

CVE-2019-10867 — pimcore

HIGHFix: pimcore/pimcore@38a29e2

CVE-2019-10867 is a high-severity (CVSS 8.8) Deserialization of Untrusted Data vulnerability in pimcore/pimcore. 5 public exploit or proof-of-concept references are indexed, so weaponization risk is real. A fix is available for pimcore/pimcore — see the affected versions and patch details below.

Pimcore Unserialize Remote Code Execution

Also known asGHSA-7hqr-j26m-gmwpSNYK-PHP-PIMCOREPIMCORE-173998
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
5 known
Exploitation data as of Nov 10, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
68.9%probability of exploitation in next 30 days
High Risk0.00%
Lower risk than most CVEs99th percentile — riskier than 99% of all scored CVEsHighest risk
47.7%56.6%65.5%74.3%52.7%68.9%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
🐘pimcore/pimcore

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

An issue was discovered in Pimcore before 5.7.1. An attacker with classes permission can send a POST request to /admin/class/bulk-commit, which will make it possible to exploit the unserialize function when passing untrusted values in the data parameter to bundles/AdminBundle/Controller/Admin/DataObject/ClassController.php.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagistpimcore/pimcoreall versions5.7.1composer require pimcore/pimcore:^5.7.1

Affected Products

1 product · 1 configurations
Application
pimcorepimcore
< 5.7.1
range
Exploits & PoCs
5

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

EDB-46783remotephp✓ Verified

Pimcore < 5.71 - Unserialize Remote Code Execution (Metasploit)

by Metasploit · Apr 30, 2019

Exploit-DB Source

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for pimcore/pimcore, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update pimcore/pimcore to 5.7.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2019-10867 is resolved across your whole dependency graph.

  3. Workarounds

    Do not deserialise data from untrusted sources: where the format allows it, restrict deserialisation to an explicit allowlist of expected types, and prefer a data-only format (JSON, Protobuf) over one that can reconstruct arbitrary objects until you can upgrade.

Frequently Asked Questions

An issue was discovered in Pimcore before 5.7.1. An attacker with classes permission can send a POST request to /admin/class/bulk-commit, which will make it possible to exploit the unserialize function when passing untrusted values in the data parameter to bundles/AdminBundle/Controller/Admin/DataObject/ClassController.php.
O3 Security · Impact-Aware SCA

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CVE-2019-10867: pimcore — Fixed in 5.7.1