{"id":"CVE-2026-88020","state":"PUBLISHED","title":"Improper Neutralization of Input During Web Page Generation in OpenPLC Runtime v3","description":"Autonomy Logic OpenPLC 3 is susceptible to an improper neutralization of input during web page generation vulnerability when the web interface attempts to route the program based on a query string parameter with no encoding.","publishedAt":"2026-09-22T20:40:26.449Z","updatedAt":"2026-09-23T15:05:45.280Z","severity":{"score":5.3,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","source":"icscert"},"assigner":"icscert","products":["Autonomy Logic OpenPLC Runtime"],"affected":[{"vendor":"Autonomy Logic","product":"OpenPLC Runtime","defaultStatus":"unaffected","versions":[{"version":"3","status":"affected"},{"version":"4","status":"unaffected"}]}],"references":["https://www.cisa.gov/news-events/ics-advisories/icsa-26-265-09","https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-265-09.json"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:13:26.108Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/88xxx/CVE-2026-88020.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-88020","state":"PUBLISHED","datePublished":"2026-09-22T20:40:26.449Z","dateUpdated":"2026-09-23T15:05:45.280Z","assignerShortName":"icscert","assignerOrgId":"7d14cffa-0d7d-4270-9dc0-52cabd5a23a6","dateReserved":"2026-09-09T19:31:22.591Z"},"containers":{"cna":{"title":"Improper Neutralization of Input During Web Page Generation in OpenPLC Runtime v3","descriptions":[{"lang":"en","value":"Autonomy Logic OpenPLC 3 is susceptible to an improper neutralization of input during web page generation vulnerability when the web interface attempts to route the program based on a query string parameter with no encoding."}],"affected":[{"vendor":"Autonomy Logic","product":"OpenPLC Runtime","defaultStatus":"unaffected","versions":[{"version":"3","status":"affected"},{"version":"4","status":"unaffected"}]}],"references":[{"url":"https://www.cisa.gov/news-events/ics-advisories/icsa-26-265-09"},{"url":"https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-265-09.json"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE","baseSeverity":"MEDIUM","baseScore":6.1,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"}},{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"PASSIVE","vulnConfidentialityImpact":"LOW","subConfidentialityImpact":"LOW","vulnIntegrityImpact":"LOW","subIntegrityImpact":"LOW","vulnAvailabilityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"MEDIUM","baseScore":5.3,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79 Improper neutralization of input during web page generation ('cross-site scripting')","type":"CWE"}]}],"providerMetadata":{"shortName":"icscert","orgId":"7d14cffa-0d7d-4270-9dc0-52cabd5a23a6","dateUpdated":"2026-09-22T20:40:26.449Z"},"datePublic":"2026-09-22T17:53:00.000Z","solutions":[{"lang":"en","value":"Autonomy Logic recommends users upgrade to OpenPLC v4 as OpenPLC v3 is end-of-life and is no longer receiving patches, bug fixes, or security updates.","supportingMedia":[{"type":"text/html","base64":false,"value":"Autonomy Logic recommends users upgrade to OpenPLC v4 as OpenPLC v3 is end-of-life and is no longer receiving patches, bug fixes, or security updates."}]}],"credits":[{"lang":"en","value":"Rajivarnan R. reported this vulnerability to CISA.","type":"finder"},{"lang":"en","value":"Shirshak of Secnora reported this vulnerability to CISA.","type":"finder"}],"source":{"advisory":"ICSA-26-265-09","discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 1.0.5"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-23T15:05:37.231688Z","id":"CVE-2026-88020","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-23T15:05:45.280Z"}}]}}}