What is CVE-2019-16317?

CVE-2019-16317 is a high-severity vulnerability in Pimcore, classified under Deserialization of Untrusted Data. CVSS score: 8.8/10. Published 2019-09-14.

How severe is CVE-2019-16317?

High severity. CVSS v3 base score is 8.8 out of 10.

Deserialization in Pimcore

CVE-2019-16317

In Pimcore before 5.7.1, an attacker with limited privileges can trigger execution of a .phar file via a phar:// URL in a filename parameter, because PHAR uploads are not blocked and are reachable within the phar://../../../../../../../../var/www/html/web/var/assets/ directory, a different vulnerability than CVE-2019-10867 and CVE-2019-16318.

Vulnerability class: Insecure Deserialization

Published 2019-09-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.017 (76.5th percentile), scored 2026-10-08.

Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 76.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000

Affected products

Pimcore

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

github.com/pimcore/pimcore/commit/6ee5d8536d0802e377594cbe39083e822710aab9 (Patch)
snyk.io/vuln/SNYK-PHP-PIMCOREPIMCORE-451599 (Third Party Advisory)

Frequently asked questions

What is CVE-2019-16317?: CVE-2019-16317 is a high-severity vulnerability in Pimcore, classified under Deserialization of Untrusted Data. CVSS score: 8.8/10. Published 2019-09-14.
How severe is CVE-2019-16317?: High severity. CVSS v3 base score is 8.8 out of 10.