{"version":"https://jsonfeed.org/version/1.1","title":"Patchfirst: ownCloud vulnerabilities","home_page_url":"https://patchfirst.co/vendor/owncloud/","feed_url":"https://patchfirst.co/feed/vendor/owncloud.json","description":"New and newly exploited ownCloud CVEs, with CISA KEV, EPSS and ATT&CK context. Newest 50 by publication or KEV listing.","language":"en-GB","items":[{"id":"CVE-2023-49105#kev","url":"https://patchfirst.co/cve/CVE-2023-49105/","title":"[KEV] CVE-2023-49105: ownCloud Improper Authentication Vulnerability","content_text":"ownCloud · ownCloud. In CISA KEV since 2026-08-27. ENISA EUVD lists it as exploited. EPSS 43.2% (higher than 98.7% of CVEs). CVSS 9.8 CRITICAL. Public exploit code exists. ATT&CK: T1190 Exploit Public-Facing Application; T1005 Data from Local System; T1485 Data Destruction. Priority 79.6 of 100.","summary":"ownCloud Improper Authentication Vulnerability","date_published":"2026-08-27T00:00:00.000Z","date_modified":"2026-08-28T12:21:09.000Z","tags":["kev","public-exploit","T1190","T1005","T1485"],"_patchfirst":{"reason":"kev","priority":79.6,"kev":{"dateAdded":"2026-08-27","ransomware":false},"epss":{"score":0.4319,"percentile":0.98723},"cvss":{"score":9.8,"severity":"CRITICAL","version":"3.1"},"vendor":"ownCloud","product":"ownCloud","techniqueIds":["T1190","T1005","T1485"],"reportCount":0,"hasPublicExploit":true,"euvdExploited":true}},{"id":"CVE-2023-49103#kev","url":"https://patchfirst.co/cve/CVE-2023-49103/","title":"[KEV] CVE-2023-49103: ownCloud graphapi Information Disclosure Vulnerability","content_text":"ownCloud · ownCloud graphapi. In CISA KEV since 2023-11-30. ENISA EUVD lists it as exploited. EPSS 77.8% (higher than 99.57% of CVEs). CVSS 7.5 HIGH. Public exploit code exists. ATT&CK: T1190 Exploit Public-Facing Application; T1005 Data from Local System; T1552 Unsecured Credentials. Priority 68.2 of 100.","summary":"ownCloud graphapi Information Disclosure Vulnerability","date_published":"2023-11-30T00:00:00.000Z","date_modified":"2026-06-17T06:35:22.000Z","tags":["kev","public-exploit","T1190","T1005","T1552"],"_patchfirst":{"reason":"kev","priority":68.2,"kev":{"dateAdded":"2023-11-30","ransomware":false},"epss":{"score":0.77755,"percentile":0.99568},"cvss":{"score":7.5,"severity":"HIGH","version":"3.1"},"vendor":"ownCloud","product":"ownCloud graphapi","techniqueIds":["T1190","T1005","T1552"],"reportCount":0,"hasPublicExploit":true,"euvdExploited":true}}]}