{"id":"CVE-2026-25786","aliases":["EUVD-2026-29426","GHSA-mg8g-5fc8-4fqp"],"status":"published","title":"Affected devices do not properly validate and sanitize PLC/station name rendered on the ...","description":"Affected devices do not properly validate and sanitize PLC/station name rendered on the \"communication\" parameters page of the web interface.\r\nThis could allow an authenticated attacker who is authorized to download a TIA project into the product, to inject malicious scripts into the page.\r\nIf a benign user with appropriate rights accesses the \"communication\" parameters page, the malicious code would be executed in the scope of their web session.","severity":{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.0037,"percentile":0.31373,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2026-05-12T08:20:58Z","modified":"2026-07-14T10:16:31Z","products":[{"vendor":"siemens","product":"simatic drive controller cpu 1504d tf"},{"vendor":"siemens","product":"simatic drive controller cpu 1507d tf"},{"vendor":"siemens","product":"simatic et 200sp cpu 1510sp f-1 pn"},{"vendor":"siemens","product":"simatic et 200sp cpu 1510sp-1 pn"},{"vendor":"siemens","product":"simatic et 200sp cpu 1512sp f-1 pn"},{"vendor":"siemens","product":"simatic et 200sp cpu 1512sp-1 pn"},{"vendor":"siemens","product":"simatic et 200sp cpu 1514sp f-2 pn"},{"vendor":"siemens","product":"simatic et 200sp cpu 1514sp-2 pn"},{"vendor":"siemens","product":"simatic et 200sp cpu 1514spt f-2 pn"},{"vendor":"siemens","product":"simatic et 200sp cpu 1514spt-2 pn"},{"vendor":"siemens","product":"simatic et 200sp open controller cpu 1515sp pc (incl. siplus variants)"},{"vendor":"siemens","product":"simatic et 200sp open controller cpu 1515sp pc2 (incl. siplus variants) v2 cpus"},{"vendor":"siemens","product":"simatic et 200sp open controller cpu 1515sp pc2 (incl. siplus variants) v3 cpus"},{"vendor":"siemens","product":"simatic et 200sp open controller cpu 1515sp pc3 v4 cpus"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1511-1 pn"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1511c-1 pn"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1511f-1 pn"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1511t-1 pn"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1511tf-1 pn"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1512c-1 pn"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1513-1 pn"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1513f-1 pn"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1513pro f-2 pn"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1513pro-2 pn"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1515-2 pn"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1515f-2 pn"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1515t-2 pn"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1515tf-2 pn"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1516-3 pn/dp"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1516f-3 pn/dp"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1516pro f-2 pn"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1516pro-2 pn"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1516t-3 pn"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1516t-3 pn/dp"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1516tf-3 pn"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1516tf-3 pn/dp"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1517-3 pn"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1517-3 pn/dp"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1517f-3 pn"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1517f-3 pn/dp"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1517t-3 pn"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1517t-3 pn/dp"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1517tf-3 pn"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1517tf-3 pn/dp"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1518-3 pn"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1518-4 pn/dp"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1518-4 pn/dp mfp"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1518f-3 pn"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1518f-4 pn/dp"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1518f-4 pn/dp mfp"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1518t-3 pn"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1518t-4 pn/dp"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1518tf-3 pn"},{"vendor":"siemens","product":"simatic s7-1500 cpu 1518tf-4 pn/dp"},{"vendor":"siemens","product":"simatic s7-1500 cpu s7-1518-4 pn/dp odk"},{"vendor":"siemens","product":"simatic s7-1500 cpu s7-1518f-4 pn/dp odk"},{"vendor":"siemens","product":"simatic s7-1500 et 200pro: cpu 1513pro f-2 pn"},{"vendor":"siemens","product":"simatic s7-1500 et 200pro: cpu 1513pro-2 pn"},{"vendor":"siemens","product":"simatic s7-1500 et 200pro: cpu 1516pro f-2 pn"},{"vendor":"siemens","product":"simatic s7-1500 et 200pro: cpu 1516pro-2 pn"},{"vendor":"siemens","product":"simatic s7-1500 software controller cpu 1507s f v2"},{"vendor":"siemens","product":"simatic s7-1500 software controller cpu 1507s f v3"},{"vendor":"siemens","product":"simatic s7-1500 software controller cpu 1507s f v4"},{"vendor":"siemens","product":"simatic s7-1500 software controller cpu 1507s v2"},{"vendor":"siemens","product":"simatic s7-1500 software controller cpu 1507s v3"},{"vendor":"siemens","product":"simatic s7-1500 software controller cpu 1507s v4"},{"vendor":"siemens","product":"simatic s7-1500 software controller cpu 1508s f v2"},{"vendor":"siemens","product":"simatic s7-1500 software controller cpu 1508s f v3"},{"vendor":"siemens","product":"simatic s7-1500 software controller cpu 1508s f v4"},{"vendor":"siemens","product":"simatic s7-1500 software controller cpu 1508s t v3"},{"vendor":"siemens","product":"simatic s7-1500 software controller cpu 1508s tf v3"},{"vendor":"siemens","product":"simatic s7-1500 software controller cpu 1508s v2"},{"vendor":"siemens","product":"simatic s7-1500 software controller cpu 1508s v3"},{"vendor":"siemens","product":"simatic s7-1500 software controller cpu 1508s v4"},{"vendor":"siemens","product":"simatic s7-1500 software controller linux v2"},{"vendor":"siemens","product":"simatic s7-1500 software controller linux v3"},{"vendor":"siemens","product":"simatic s7-plcsim advanced"},{"vendor":"siemens","product":"siplus et 200sp cpu 1510sp f-1 pn"},{"vendor":"siemens","product":"siplus et 200sp cpu 1510sp f-1 pn rail"},{"vendor":"siemens","product":"siplus et 200sp cpu 1510sp-1 pn"},{"vendor":"siemens","product":"siplus et 200sp cpu 1510sp-1 pn rail"},{"vendor":"siemens","product":"siplus et 200sp cpu 1512sp f-1 pn"},{"vendor":"siemens","product":"siplus et 200sp cpu 1512sp f-1 pn rail"},{"vendor":"siemens","product":"siplus et 200sp cpu 1512sp-1 pn"},{"vendor":"siemens","product":"siplus et 200sp cpu 1512sp-1 pn rail"},{"vendor":"siemens","product":"siplus s7-1500 cpu 1511-1 pn"},{"vendor":"siemens","product":"siplus s7-1500 cpu 1511-1 pn t1 rail"},{"vendor":"siemens","product":"siplus s7-1500 cpu 1511-1 pn tx rail"},{"vendor":"siemens","product":"siplus s7-1500 cpu 1511f-1 pn"},{"vendor":"siemens","product":"siplus s7-1500 cpu 1513-1 pn"},{"vendor":"siemens","product":"siplus s7-1500 cpu 1513f-1 pn"},{"vendor":"siemens","product":"siplus s7-1500 cpu 1515f-2 pn"},{"vendor":"siemens","product":"siplus s7-1500 cpu 1515f-2 pn rail"},{"vendor":"siemens","product":"siplus s7-1500 cpu 1515f-2 pn t2 rail"},{"vendor":"siemens","product":"siplus s7-1500 cpu 1516-3 pn/dp"},{"vendor":"siemens","product":"siplus s7-1500 cpu 1516-3 pn/dp rail"},{"vendor":"siemens","product":"siplus s7-1500 cpu 1516-3 pn/dp tx rail"},{"vendor":"siemens","product":"siplus s7-1500 cpu 1516f-3 pn/dp"},{"vendor":"siemens","product":"siplus s7-1500 cpu 1516f-3 pn/dp rail"},{"vendor":"siemens","product":"siplus s7-1500 cpu 1518-4 pn/dp"},{"vendor":"siemens","product":"siplus s7-1500 cpu 1518-4 pn/dp mfp"},{"vendor":"siemens","product":"siplus s7-1500 cpu 1518f-4 pn/dp"}],"references":[{"url":"https://cert-portal.siemens.com/productcert/html/ssa-688146.html"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-25786"},{"url":"https://github.com/advisories/GHSA-mg8g-5fc8-4fqp"}],"sources":{"cve":[{"id":"CVE-2026-25786","description":"Affected devices do not properly validate and sanitize PLC/station name rendered on the \"communication\" parameters page of the web interface.\r\nThis could allow an authenticated attacker who is authorized to download a TIA project into the product, to inject malicious scripts into the page.\r\nIf a benign user with appropriate rights accesses the \"communication\" parameters page, the malicious code would be executed in the scope of their web session.","status":"published","published":"2026-05-12T08:20:58.605Z","modified":"2026-07-14T09:19:12.039Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","level":"critical","assessor":"cna"},{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T13:41:30.911526Z"}],"euvd":[{"id":"EUVD-2026-29426","description":"Affected devices do not properly validate and sanitize PLC/station name rendered on the \"communication\" parameters page of the web interface.\r\nThis could allow an authenticated attacker who is authorized to download a TIA project into the product, to inject malicious scripts into the page.\r\nIf a benign user with appropriate rights accesses the \"communication\" parameters page, the malicious code would be executed in the scope of their web session.","status":"published","published":"2026-05-12T08:20:58Z","modified":"2026-07-14T09:19:12Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","level":"critical"}],"updated_at":"2026-11-02T18:20:00.696533Z"}],"ghsa":[{"id":"GHSA-mg8g-5fc8-4fqp","title":"Affected devices do not properly validate and sanitize PLC/station name rendered on the ...","description":"Affected devices do not properly validate and sanitize PLC/station name rendered on the \"communication\" parameters page of the web interface.\nThis could allow an authenticated attacker who is authorized to download a TIA project into the product, to inject malicious scripts into the page.\nIf a benign user with appropriate rights accesses the \"communication\" parameters page, the malicious code would be executed in the scope of their web session.","status":"published","published":"2026-05-12T12:32:14Z","modified":"2026-05-12T12:32:22Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical"},{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:08:01.880471Z"}],"nvd":[{"id":"CVE-2026-25786","description":"Affected devices do not properly validate and sanitize PLC/station name rendered on the \"communication\" parameters page of the web interface.\r\nThis could allow an authenticated attacker who is authorized to download a TIA project into the product, to inject malicious scripts into the page.\r\nIf a benign user with appropriate rights accesses the \"communication\" parameters page, the malicious code would be executed in the scope of their web session.","status":"published","published":"2026-05-12T10:16:44.193Z","modified":"2026-07-14T10:16:31.513Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical","assessor":"secondary"},{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:12:18.613259Z"}]}}