{"cve_id":"CVE-2021-26829","published":"2021-06-11T12:15:12.053000+00:00","last_modified":"2026-06-17T03:43:50.063000+00:00","vuln_status":"Analyzed","description":"OpenPLC ScadaBR through 0.9.1 on Linux and through 1.12.4 on Windows allows stored XSS via system_settings.shtm.","cvss_version":"3.1","cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","base_score":5.4,"base_severity":"MEDIUM","attack_vector":"NETWORK","privileges_req":"LOW","user_interaction":"REQUIRED","scope":"CHANGED","impact_c":"LOW","impact_i":"LOW","impact_a":"NONE","cwe_ids":["CWE-79"],"in_kev":true,"kev_date_added":"2025-11-28","kev_ransomware":false,"epss_score":0.4805,"epss_percentile":0.98857,"cap_rule_version":"0.1.1","stage":"CRED_ACCESS","req_access":"USER","req_vector":"NETWORK","req_user_interaction":true,"grant_access":"USER","caps":["CRED_ACCESS","INFO_DISCLOSURE","TAMPER"],"terminal":false,"cap_confidence":"high","ingested_at":"2026-09-18T09:44:49.576734+00:00","first_seen":"2021-06-11T12:15:12.053000+00:00","kev_first_seen":"2025-11-28T00:00:00+00:00","novelty_score":0.0,"novelty_reasons":[],"novelty_at":null,"vendors":["linux","microsoft","scadabr"],"products":["linux_kernel","scadabr","windows"],"affected":[{"vendor":"scadabr","product":"scadabr","ranges":["≤ 0.9.1","≤ 1.12.4"]}]}