{"id":"CVE-2026-88020","aliases":["EUVD-2026-84871","GHSA-2rm8-h9xj-p8hw"],"status":"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.","severity":{"version":"4.0","score":5.3,"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","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00275,"percentile":0.20187,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2026-09-22T20:40:26Z","modified":"2026-09-23T19:42:48Z","products":[{"vendor":"autonomy logic","product":"openplc runtime"}],"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"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-88020"},{"url":"https://github.com/advisories/GHSA-2rm8-h9xj-p8hw"}],"sources":{"cve":[{"id":"CVE-2026-88020","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.","status":"published","published":"2026-09-22T20:40:26.449Z","modified":"2026-09-23T15:05:45.28Z","cvss":[{"version":"4.0","score":5.3,"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","level":"medium","assessor":"cna"},{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T13:42:04.39372Z"}],"euvd":[{"id":"EUVD-2026-84871","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.","status":"published","published":"2026-09-22T20:40:26Z","modified":"2026-09-23T15:05:45Z","cvss":[{"version":"4.0","score":5.3,"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","level":"medium"}],"updated_at":"2026-11-02T17:28:00.617613Z"}],"ghsa":[{"id":"GHSA-2rm8-h9xj-p8hw","title":"Autonomy Logic OpenPLC 3 is susceptible to an improper neutralization of input during web page...","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.","status":"published","published":"2026-09-22T21:31:31Z","modified":"2026-09-22T21:31:39Z","cvss":[{"version":"4.0","score":5.3,"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/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":"medium"},{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:12:19.294085Z"}],"nvd":[{"id":"CVE-2026-88020","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.","status":"published","published":"2026-09-22T21:17:33.057Z","modified":"2026-09-23T19:42:48.54Z","cvss":[{"version":"4.0","score":5.3,"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/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":"medium","assessor":"secondary"},{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:12:50.703874Z"}]}}