{"id":"CVE-2020-8235","aliases":["EUVD-2020-29107","GHSA-crm5-43pc-vrcg"],"status":"published","title":"Missing access control in Nextcloud Deck 1.0.4 caused an insecure direct object reference...","description":"Missing access control in Nextcloud Deck 1.0.4 caused an insecure direct object reference allowing an attacker to view all attachments.","severity":{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00781,"percentile":0.56235,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-639"],"published":"2020-10-05T13:16:08Z","modified":"2026-10-24T10:30:29Z","products":[{"vendor":"nextcloud","product":"deck"}],"references":[{"url":"https://hackerone.com/reports/916704","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence"]},{"url":"https://nextcloud.com/security/advisory/?id=NC-SA-2020-036","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-8235"},{"url":"https://github.com/advisories/GHSA-crm5-43pc-vrcg"}],"sources":{"cve":[{"id":"CVE-2020-8235","description":"Missing access control in Nextcloud Deck 1.0.4 caused an insecure direct object reference allowing an attacker to view all attachments.","status":"published","published":"2020-10-05T13:16:08Z","modified":"2024-08-04T09:56:27.666Z","cwes":["CWE-639"],"updated_at":"2026-11-02T14:35:50.88562Z"}],"euvd":[{"id":"EUVD-2020-29107","description":"Missing access control in Nextcloud Deck 1.0.4 caused an insecure direct object reference allowing an attacker to view all attachments.","status":"published","published":"2020-10-05T13:16:08Z","modified":"2024-08-04T09:56:27Z","updated_at":"2026-11-03T03:07:57.599144Z"}],"ghsa":[{"id":"GHSA-crm5-43pc-vrcg","title":"Missing access control in Nextcloud Deck 1.0.4 caused an insecure direct object reference...","description":"Missing access control in Nextcloud Deck 1.0.4 caused an insecure direct object reference allowing an attacker to view all attachments.","status":"published","published":"2022-05-24T17:30:06Z","modified":"2023-01-29T05:04:15Z","updated_at":"2026-11-02T14:45:30.341086Z"}],"nvd":[{"id":"CVE-2020-8235","description":"Missing access control in Nextcloud Deck 1.0.4 caused an insecure direct object reference allowing an attacker to view all attachments.","status":"published","published":"2020-10-05T14:15:13.813Z","modified":"2026-06-17T03:26:06.35Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-639"],"updated_at":"2026-11-02T14:06:17.70091Z"}],"osv":[{"id":"CVE-2020-8235","description":"Missing access control in Nextcloud Deck 1.0.4 caused an insecure direct object reference allowing an attacker to view all attachments.","status":"published","published":"2020-10-05T14:15:13.813Z","modified":"2026-10-24T10:30:29.063717573Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:17.663289Z"}]}}