{"affected":[{"defaultStatus":"unaffected","ecosystem":"maven","packageName":"org.openidentityplatform.openam/openam-oauth2","product":"OpenAM","source":"CNA: VulnCheck","vendor":"OpenIdentityPlatform","versions":[{"lessThan":"16.1.4","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"16.1.4","versionType":"semver"}]}],"cveId":"CVE-2026-123539","cwes":["CWE-79"],"description":"OpenAM before 16.1.4 contains a stored cross-site scripting vulnerability that allows privileged attackers to inject script by placing markup in a user's display name. When the victim reaches the OAuth 2.0 / OpenID Connect consent page, the unencoded name executes script that can steal the OpenAM session cookie to impersonate the user.","epss":{"date":"2026-11-12","percentile":0.07655,"score":0.0018},"exploits":[],"kev":null,"metrics":[{"score":4.8,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","version":"4.0"},{"score":4.8,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},{"score":4.8,"severity":"medium","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/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","version":"4.0"},{"score":4.8,"severity":"medium","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","version":"3.1"}],"modifiedAt":1794492476763,"publishedAt":1794101865918,"references":[{"source":"CNA: VulnCheck","tags":["vendor-advisory"],"url":"https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-v6hq-3cfh-5gr6"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/openam-before-16.1.4-stored-xss-via-oauth-2.0-consent-page-display-name"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-v6hq-3cfh-5gr6"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://www.vulncheck.com/advisories/openam-before-16.1.4-stored-xss-via-oauth-2.0-consent-page-display-name"}],"remediation":[],"revision":"65f168168a00c361dcfbd932e7d25597ba83b4088b7695e0d0d328e1c8cbae2f","sources":[{"modifiedAt":1794492476763,"name":"CNA: VulnCheck","retrievedAt":1794496269229,"url":"https://www.cve.org/CVERecord?id=CVE-2026-123539"},{"modifiedAt":1794348809767,"name":"NVD","retrievedAt":1794356336963,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-123539"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1794496291610,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-123539"}],"ssvc":{"assessedAt":1794492467160,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"OpenAM before 16.1.4 Stored XSS via OAuth 2.0 Consent Page Display Name","updatedAt":1794496291610}