{"version":"https://jsonfeed.org/version/1.1","title":"Patchfirst: OpenPLC vulnerabilities","home_page_url":"https://patchfirst.co/vendor/openplc/","feed_url":"https://patchfirst.co/feed/vendor/openplc.json","description":"New and newly exploited OpenPLC CVEs, with CISA KEV, EPSS and ATT&CK context. Newest 50 by publication or KEV listing.","language":"en-GB","items":[{"id":"CVE-2021-26828#kev","url":"https://patchfirst.co/cve/CVE-2021-26828/","title":"[KEV] CVE-2021-26828: OpenPLC ScadaBR Unrestricted Upload of File with Dangerous Type Vulnerability","content_text":"OpenPLC · ScadaBR. In CISA KEV since 2025-12-03. ENISA EUVD lists it as exploited. EPSS 39.1% (higher than 98.6% of CVEs). CVSS 8.8 HIGH. Public exploit code exists. ATT&CK: T1190 Exploit Public-Facing Application; T1059 Command and Scripting Interpreter. Priority 68.9 of 100.","summary":"OpenPLC ScadaBR Unrestricted Upload of File with Dangerous Type Vulnerability","date_published":"2025-12-03T00:00:00.000Z","date_modified":"2026-06-17T03:43:49.000Z","tags":["kev","public-exploit","T1190","T1059"],"_patchfirst":{"reason":"kev","priority":68.9,"kev":{"dateAdded":"2025-12-03","ransomware":false},"epss":{"score":0.39096,"percentile":0.98593},"cvss":{"score":8.8,"severity":"HIGH","version":"3.1"},"vendor":"OpenPLC","product":"ScadaBR","techniqueIds":["T1190","T1059"],"reportCount":0,"hasPublicExploit":true,"euvdExploited":true}},{"id":"CVE-2021-26829#kev","url":"https://patchfirst.co/cve/CVE-2021-26829/","title":"[KEV] CVE-2021-26829: OpenPLC ScadaBR Cross-site Scripting Vulnerability","content_text":"OpenPLC · ScadaBR. In CISA KEV since 2025-11-28. ENISA EUVD lists it as exploited. EPSS 48.0% (higher than 98.9% of CVEs). CVSS 5.4 MEDIUM. Public exploit code exists. ATT&CK: T1059.007 JavaScript. Priority 66.6 of 100.","summary":"OpenPLC ScadaBR Cross-site Scripting Vulnerability","date_published":"2025-11-28T00:00:00.000Z","date_modified":"2026-06-17T03:43:50.000Z","tags":["kev","public-exploit","T1059.007"],"_patchfirst":{"reason":"kev","priority":66.6,"kev":{"dateAdded":"2025-11-28","ransomware":false},"epss":{"score":0.4805,"percentile":0.98855},"cvss":{"score":5.4,"severity":"MEDIUM","version":"3.1"},"vendor":"OpenPLC","product":"ScadaBR","techniqueIds":["T1059.007"],"reportCount":0,"hasPublicExploit":true,"euvdExploited":true}}]}