{"schema_version":1,"title":"OpenPLC vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 2 vulnerabilities in OpenPLC: 0 in the last 7 days and 0 in the last 90 days, 2 of them critical and 2 exploited in the wild. The most recent, CVE-2021-26828, was published on 3 December 2025. 1 technology has a page of its own.","url":"https://junglewise.ai/threats/vendors/openplc","json_url":"https://junglewise.ai/threats/vendors/openplc.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/vendors/openplc","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"vendor","counts":{"high":0,"all_time":2,"critical":2,"exploited":2,"last_7_days":0,"last_30_days":0,"last_90_days":0,"last_365_days":2},"latest":[{"cve":"CVE-2021-26828","cvss":8.8,"epss":0.8002,"slug":"cve-2021-26828-openplc-scadabr-unrestricted-file-upload-in-view-edit-shtm","title":"OpenPLC ScadaBR unrestricted file upload in view_edit.shtm","severity":"critical","exploited":true,"published_at":"2025-12-03T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2021-26828-openplc-scadabr-unrestricted-file-upload-in-view-edit-shtm"},{"cve":"CVE-2021-26829","cvss":5.4,"epss":0.0756,"slug":"cve-2021-26829-openplc-scadabr-stored-xss-in-system-settings-shtm","title":"OpenPLC ScadaBR stored XSS in system_settings.shtm","severity":"critical","exploited":true,"published_at":"2025-11-28T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2021-26829-openplc-scadabr-stored-xss-in-system-settings-shtm"}],"vendor":{"hub":true,"name":"OpenPLC","slug":"openplc","homepage":"https://openplcproject.com/","description":"An open-source project providing a programmable logic controller software stack.","url":"https://junglewise.ai/threats/vendors/openplc"},"weekly":[{"week":"2026-06-29","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-06","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-13","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-20","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-27","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-03","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-10","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0}],"most_severe":[{"cve":"CVE-2021-26828","cvss":8.8,"epss":0.8002,"slug":"cve-2021-26828-openplc-scadabr-unrestricted-file-upload-in-view-edit-shtm","title":"OpenPLC ScadaBR unrestricted file upload in view_edit.shtm","severity":"critical","exploited":true,"published_at":"2025-12-03T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2021-26828-openplc-scadabr-unrestricted-file-upload-in-view-edit-shtm"},{"cve":"CVE-2021-26829","cvss":5.4,"epss":0.0756,"slug":"cve-2021-26829-openplc-scadabr-stored-xss-in-system-settings-shtm","title":"OpenPLC ScadaBR stored XSS in system_settings.shtm","severity":"critical","exploited":true,"published_at":"2025-11-28T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2021-26829-openplc-scadabr-stored-xss-in-system-settings-shtm"}],"generated_at":"2026-09-26T09:11:00.170868+00:00","technologies":[{"name":"OpenPLC SCADABr","slug":"scadabr","vulnerabilities":8,"url":"https://junglewise.ai/threats/technologies/scadabr"}]}