{"cve":"CVE-2020-28644","nvd":{"published":"2021-02-09T19:15:13.630","modified":"2026-06-17T03:10:40.583","status":"Modified","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","score":4.3},"cwes":["CWE-352"],"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/"],"products":["owncloud:owncloud"],"source":"nvd","synced_at":"2026-10-19T21:14:10.479542811+00:00"},"epss":{"cve":"CVE-2020-28644","score":0.00461,"percentile":0.40004,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}