CVE-2020-36252

Severity: medium (CVSS 5.7 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-02-19 · updated 2026-06-17
Weakness: CWE-330

Description

ownCloud Server 10.x before 10.3.1 allows an attacker, who has one outgoing share from a victim, to access any version of any file by sending a request for a predictable ID number.

Affected products

ownCloud: from 10.0.9 before 10.3.1 — fixed in 10.3.1

How to fix

Upgrade to a fixed version: ownCloud 10.3.1. Check the vendor advisory for mitigations.

References

https://owncloud.com/security-advisories/access-to-all-file-versions/
https://owncloud.com/security-advisories/access-to-all-file-versions/

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