CVE-2018-20718
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....
- Published
- Jan 15, 2019
- Updated
- Aug 5, 2024
- Assigning CNA
- mitre
- Evidence observed
- Aug 5, 2026
Primary CVSS
nvd · CVSS 2.0
AV:N/AC:L/Au:N/C:C/I:C/A:CLow · next 30 days
- Percentile
- 87.4%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
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.
Sources
1Proof-of-concept exploit for CVE-2018-20718, a PHP object injection vulnerability in Pydio before 8.2.1 enabling unauthenticated remote code execution via a gadget chain.
Responsible use
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