{"affected":[{"defaultStatus":"unaffected","product":"openemr","source":"CNA: VulnCheck","vendor":"openemr","versions":[{"lessThan":"8.5.0","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"8.5.0","versionType":"semver"}]}],"cveId":"CVE-2026-126476","cwes":["CWE-79"],"description":"OpenEMR before 8.5.0 contains a reflected cross-site scripting vulnerability in the Application module's auto-suggest endpoint, which echoes the searchMode POST parameter unencoded into a single-quoted onClick attribute. Attackers can induce an authenticated user to submit a single-quote payload to application/index/search, executing arbitrary JavaScript in that user's session to steal session cookies or disclose patient data.","epss":{"date":"2026-11-13","percentile":0.18255,"score":0.00263},"exploits":[],"kev":null,"metrics":[{"score":5.1,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","version":"4.0"},{"score":6.1,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},{"score":5.1,"severity":"medium","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/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","version":"4.0"},{"score":6.1,"severity":"medium","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"}],"modifiedAt":1794585512772,"publishedAt":1794562496473,"references":[{"source":"CNA: VulnCheck","tags":["vendor-advisory"],"url":"https://github.com/openemr/openemr/security/advisories/GHSA-8mwp-vq82-x5mr"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/openemr-before-8.5.0-reflected-xss-via-auto-suggest-searchmode-parameter"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/openemr/openemr/security/advisories/GHSA-8mwp-vq82-x5mr"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://www.vulncheck.com/advisories/openemr-before-8.5.0-reflected-xss-via-auto-suggest-searchmode-parameter"}],"remediation":[],"revision":"93714b71435d50eee607d286eaee93d14a5ed143112043c4727d1c05e533843b","sources":[{"modifiedAt":1794585512772,"name":"CNA: VulnCheck","retrievedAt":1794586236482,"url":"https://www.cve.org/CVERecord?id=CVE-2026-126476"},{"modifiedAt":1794565077197,"name":"NVD","retrievedAt":1794572222896,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-126476"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1794586250180,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-126476"}],"ssvc":{"assessedAt":1794583787847,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"OpenEMR before 8.5.0 Reflected XSS via auto-suggest searchMode parameter","updatedAt":1794586250180}