{"schema":"threatline.record/2","record":{"id":"CVE-2026-44203","aliases":["GHSA-fq9h-c788-fx73"],"summary":"OpenAM has pre-auth Reflected XSS in OAuth2 / OIDC response_mode=form_post via state parameter (FormPostResponse.ftl)","details":"### Summary\n\nThe OAuth 2.0 / OpenID Connect authorization endpoint does not sufficiently sanitize certain user-supplied parameters before incorporating them into the HTML response generated for the `form_post` response mode. This may allow an attacker to inject content into the rendered page in the context of the OpenAM origin.","categories":["Libraries & packages"],"product":"org.openidentityplatform.openam:openam-oauth2","vendor":"OpenIdentityPlatform","ecosystem":"maven","affected_ranges":[{"source":"GitHub Advisory Database","source_url":"https://github.com/advisories/GHSA-fq9h-c788-fx73","source_modified_at":"2026-10-28T15:28:39Z","fetched_at":"2026-10-28T15:55:58.673066Z","package":{"ecosystem":"maven","name":"org.openidentityplatform.openam:openam-oauth2"},"range":">= 13.0.0, < 16.1.1"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-44203","source_modified_at":"2026-09-17T14:02:34.668Z","fetched_at":"2026-10-28T15:55:58.673066Z","product":"OpenAM","vendor":"OpenIdentityPlatform","versions":[{"version":"< 16.1.1","status":"affected"}],"defaultStatus":null},{"source":"OSV","source_url":"https://osv.dev/vulnerability/GHSA-fq9h-c788-fx73","source_modified_at":"2026-10-28T15:45:11.046962368Z","fetched_at":"2026-10-28T15:55:58.673066Z","package":{"name":"org.openidentityplatform.openam:openam-oauth2","ecosystem":"Maven","purl":"pkg:maven/org.openidentityplatform.openam/openam-oauth2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"13.0.0"},{"fixed":"16.1.1"}]}],"versions":["14.5.2","14.5.3","14.5.4","14.6.1","14.6.2","14.6.3","14.6.4","14.6.5","14.6.6","14.7.0","14.7.1","14.7.2","14.7.3","14.7.4","14.8.1","14.8.2","14.8.3","14.8.4","15.0.0","15.0.1","15.0.2","15.0.3","15.0.4","15.1.0","15.1.1","15.1.2","15.1.3","15.1.4","15.1.5","15.1.6","15.2.0","15.2.1","15.2.2","16.0.1","16.0.2","16.0.3","16.0.4","16.0.5","16.0.6","16.1.0"]}],"fixed_versions":[{"source":"GitHub Advisory Database","source_url":"https://github.com/advisories/GHSA-fq9h-c788-fx73","source_modified_at":"2026-10-28T15:28:39Z","fetched_at":"2026-10-28T15:55:58.673066Z","package":{"ecosystem":"maven","name":"org.openidentityplatform.openam:openam-oauth2"},"version":"16.1.1"},{"source":"OSV","source_url":"https://osv.dev/vulnerability/GHSA-fq9h-c788-fx73","source_modified_at":"2026-10-28T15:45:11.046962368Z","fetched_at":"2026-10-28T15:55:58.673066Z","package":{"name":"org.openidentityplatform.openam:openam-oauth2","ecosystem":"Maven","purl":"pkg:maven/org.openidentityplatform.openam/openam-oauth2"},"version":"16.1.1"}],"cvss":8.3,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00593,"percentile":0.48222,"score_date":"2026-10-28"},"published_at":"2026-09-15T09:48:07.329Z","modified_at":"2026-10-28T15:45:11.046962368Z","provenance":[{"source":"GitHub Advisory Database","url":"https://github.com/advisories/GHSA-fq9h-c788-fx73","fetched_at":"2026-10-28T15:55:58.673066Z","source_modified_at":"2026-10-28T15:28:39Z"},{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-44203","fetched_at":"2026-10-28T15:55:58.673066Z","source_modified_at":"2026-09-17T14:02:34.668Z"},{"source":"OSV","url":"https://osv.dev/vulnerability/GHSA-fq9h-c788-fx73","fetched_at":"2026-10-28T15:55:58.673066Z","source_modified_at":"2026-10-28T15:45:11.046962368Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-44203","fetched_at":"2026-10-28T15:55:58.673066Z","source_modified_at":"2026-10-28"}],"sources":["GitHub Advisory Database","CVE List","OSV","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-fq9h-c788-fx73","tags":["x_refsource_CONFIRM"]},{"source":"CVE List","url":"https://github.com/OpenIdentityPlatform/OpenAM/releases/tag/16.1.1","tags":["x_refsource_MISC"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-44203","source":"GitHub Advisory Database"},{"source":"CVE List","url":"https://github.com/OpenIdentityPlatform/OpenAM/commit/078bd4754905f5130eaa7bbe45f958eaeb7fd0d7","tags":["x_refsource_MISC"]},{"url":"https://github.com/advisories/GHSA-fq9h-c788-fx73","source":"GitHub Advisory Database"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"total","assessed_at":"2026-09-17T14:02:21.759445Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"ecosystem","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-28T15:45:11.046962368Z","content_hash":"396147f7ec13b8a44539d40b0a13fa27064414f87f026ea07c180099e4d19c8a"}}