CRITICAL

CVE-2018-20718

CVSS v3

9.8

CRITICAL

EPSS Score

3.7 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2018-20718 yet.

Full record on NVD

Description

In Pydio before 8.2.2, an attack is possible via PHP Object Injection because a user is allowed to use the $phpserial$a:0:{} syntax to store a preference. An attacker either needs a "public link" of a file, or access to any unprivileged user account for creation of such a link.

Technical details

Published: 2019-01-15

Frequently asked questions

What is CVE-2018-20718?

Is CVE-2018-20718 actively exploited?

Active exploitation of CVE-2018-20718 has not been confirmed. Its EPSS score was 3.7% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-20718?

CVE-2018-20718 has a CVSS v3 base score of 9.8 (CRITICAL severity).

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