What’s Vulnerable › Vulnerabilities

CVE-2020-36251

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-02-19 · updated 2026-06-17

Description

ownCloud Server before 10.3.0 allows an attacker, who has received non-administrative access to a group share, to remove everyone else's access to that share.

Affected products

• Owncloud: before 10.3.0 — fixed in 10.3.0

How to fix

Upgrade to a fixed version: Owncloud 10.3.0. Check the vendor advisory for mitigations.

References

• https://owncloud.com/security-advisories/deleting-received-group-share-for-whole-group/
• https://owncloud.com/security-advisories/deleting-received-group-share-for-whole-group/

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