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Vulnerability record · CVE-2019-20453 · published 17 March 2020

CVE-2019-20453: Pydio deserialization of untrusted data vulnerability

Pydio · Pydio

A problem was found in Pydio Core before 8.2.4 and Pydio Enterprise before 8.2.4. A PHP object injection is present in the page plugins/uploader.http/HttpDownload.php. An authenticated user with basic privileges can inject objects and achieve remote code execution.

8.8 CVSS 3.1 High EPSS 2.1% · top 18.7% CWE-502 · Deserialization of untrusted data
8.8CVSS 3.1 base score, v2 6.5
2.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

A problem was found in Pydio Core before 8.2.4 and Pydio Enterprise before 8.2.4. A PHP object injection is present in the page plugins/uploader.http/HttpDownload.php. An authenticated user with basic privileges can inject objects and achieve remote code execution.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://pydio.com/en/community/releases/pydio-core/pydio-core-pydio-enterprise-824-security-release Vendor Advisory
https://www.certilience.fr/2020/03/cve-2019-20453-vulnerabilite-php-object-injection-pydio-core/ Third Party Advisory
https://pydio.com/en/community/releases/pydio-core/pydio-core-pydio-enterprise-824-security-release Vendor Advisory
https://www.certilience.fr/2020/03/cve-2019-20453-vulnerabilite-php-object-injection-pydio-core/ Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2019-20453), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.