CVE-2020-28644

4.3 mediumEPSS 0.5%

Medium (4.3) in owncloud owncloud. EPSS 0.5% chance of exploitation in the next 30 days.

The CSRF (Cross Site Request Forgery) token check was improperly implemented on cookie authenticated requests against some ocs API endpoints. This affects ownCloud/core version < 10.6.

Severity

CVSS 3.1

4.3 medium

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

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 40% of CVEs (scores of 2026-10-31)
CWE: CWE-352
Published: 2021-02-09
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

owncloud:owncloud

References

https://owncloud.com/security-advisories/cross-site-request-forgery-in-the-ocs-api/
https://owncloud.com/security-advisories/cross-site-request-forgery-in-the-ocs-api/

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