{"schema":"threatline.record/2","record":{"id":"CVE-2021-26829","aliases":[],"summary":"OpenPLC ScadaBR Cross-site Scripting Vulnerability","details":"OpenPLC ScadaBR contains a cross-site scripting vulnerability via system_settings.shtm.","categories":["Unclassified"],"product":"ScadaBR","vendor":"OpenPLC","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2021-26829","source_modified_at":"2025-12-02T04:56:04.472Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}],"defaultStatus":null}],"fixed_versions":[],"cvss":5.4,"severity":"Medium","kev":{"listed":true,"date_added":"2025-11-28","due_date":"2025-12-19","required_action":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","ransomware_campaign_use":"Unknown"},"epss":{"probability":0.4805,"percentile":0.98856,"score_date":"2026-10-23"},"published_at":"2021-06-11T11:05:23.000Z","modified_at":"2025-12-02T04:56:04.472Z","provenance":[{"source":"CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23T17:00:09.9001Z"},{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2021-26829","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2025-12-02T04:56:04.472Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2021-26829","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CISA KEV","CVE List","EPSS"],"references":[{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-26829","source":"CISA KEV"},{"source":"CVE List","url":"https://youtu.be/Xh6LPCiLMa8","tags":["x_refsource_MISC","x_transferred"]},{"source":"CVE List","url":"https://www.forescout.com/blog/anatomy-of-a-hacktivist-attack-russian-aligned-group-targets-otics/","tags":["third-party-advisory"]},{"source":"CVE List","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-26829","tags":["government-resource"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CISA ADP","ssvc":{"exploitation":"active","automatable":"no","technical_impact":"partial","assessed_at":"2025-12-01T00:00:00+00:00"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2025-12-02T04:56:04.472Z","content_hash":"bb8ca3976e57b565f9c610267798362c025edecd55aa9ea432ebaa8f6f5f5426"}}