{"schema":"threatline.record/2","record":{"id":"CVE-2026-11854","aliases":[],"summary":"Cross-Site Scripting via Authentication Endpoint Error Message in Multiple WSO2 Products","details":"The authentication endpoint generates an error message that includes reflected data directly from the request without sufficient sanitization or encoding. This allows an attacker to inject malicious scripts that can be executed in the context of a victim's browser.\n\nSuccessful exploitation enables an attacker to perform actions within the user's browser, such as redirecting the user to a malicious website, modifying the web page's user interface, or retrieving information. However, due to the httpOnly flag on session-related cookies, session hijacking or similar attacks are not possible.","categories":["Unclassified"],"product":"WSO2 API Manager","vendor":"WSO2","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-11854","source_modified_at":"2026-10-28T19:21:33.216Z","fetched_at":"2026-10-28T20:58:01.013507Z","product":"WSO2 API Manager","vendor":"WSO2","versions":[{"status":"unknown","version":"0","lessThan":"3.2.0","versionType":"custom"},{"status":"affected","version":"3.2.0","lessThan":"3.2.0.480","versionType":"custom"},{"status":"affected","version":"3.2.1","lessThan":"3.2.1.99","versionType":"custom"},{"status":"affected","version":"4.1.0","lessThan":"4.1.0.265","versionType":"custom"},{"status":"affected","version":"4.2.0","lessThan":"4.2.0.205","versionType":"custom"},{"status":"affected","version":"4.3.0","lessThan":"4.3.0.117","versionType":"custom"},{"status":"affected","version":"4.4.0","lessThan":"4.4.0.80","versionType":"custom"},{"status":"affected","version":"4.5.0","lessThan":"4.5.0.65","versionType":"custom"},{"status":"affected","version":"4.6.0","lessThan":"4.6.0.29","versionType":"custom"},{"status":"affected","version":"4.7.0","lessThan":"4.7.0.1","versionType":"custom"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-11854","source_modified_at":"2026-10-28T19:21:33.216Z","fetched_at":"2026-10-28T20:58:01.013507Z","product":"WSO2 API Control Plane","vendor":"WSO2","versions":[{"status":"unknown","version":"0","lessThan":"4.5.0","versionType":"custom"},{"status":"affected","version":"4.5.0","lessThan":"4.5.0.66","versionType":"custom"},{"status":"affected","version":"4.6.0","lessThan":"4.6.0.30","versionType":"custom"},{"status":"affected","version":"4.7.0","lessThan":"4.7.0.1","versionType":"custom"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-11854","source_modified_at":"2026-10-28T19:21:33.216Z","fetched_at":"2026-10-28T20:58:01.013507Z","product":"WSO2 Identity Server","vendor":"WSO2","versions":[{"status":"unknown","version":"0","lessThan":"5.10.0","versionType":"custom"},{"status":"affected","version":"5.10.0","lessThan":"5.10.0.399","versionType":"custom"},{"status":"affected","version":"5.11.0","lessThan":"5.11.0.446","versionType":"custom"},{"status":"affected","version":"6.0.0","lessThan":"6.0.0.272","versionType":"custom"},{"status":"affected","version":"6.1.0","lessThan":"6.1.0.274","versionType":"custom"},{"status":"affected","version":"7.0.0","lessThan":"7.0.0.155","versionType":"custom"},{"status":"affected","version":"7.1.0","lessThan":"7.1.0.65","versionType":"custom"},{"status":"affected","version":"7.2.0","lessThan":"7.2.0.26","versionType":"custom"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-11854","source_modified_at":"2026-10-28T19:21:33.216Z","fetched_at":"2026-10-28T20:58:01.013507Z","package":{"name":"WSO2 API 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unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-11854","source_modified_at":"2026-10-28T19:21:33.216Z","fetched_at":"2026-10-28T20:58:01.013507Z","package":{"name":"WSO2 API Manager","ecosystem":null},"version":"4.6.0.29","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-11854","source_modified_at":"2026-10-28T19:21:33.216Z","fetched_at":"2026-10-28T20:58:01.013507Z","package":{"name":"WSO2 API Manager","ecosystem":null},"version":"4.7.0.1","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-11854","source_modified_at":"2026-10-28T19:21:33.216Z","fetched_at":"2026-10-28T20:58:01.013507Z","package":{"name":"WSO2 API Control Plane","ecosystem":null},"version":"4.5.0.66","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-11854","source_modified_at":"2026-10-28T19:21:33.216Z","fetched_at":"2026-10-28T20:58:01.013507Z","package":{"name":"WSO2 API Control Plane","ecosystem":null},"version":"4.6.0.30","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-11854","source_modified_at":"2026-10-28T19:21:33.216Z","fetched_at":"2026-10-28T20:58:01.013507Z","package":{"name":"WSO2 API Control Plane","ecosystem":null},"version":"4.7.0.1","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-11854","source_modified_at":"2026-10-28T19:21:33.216Z","fetched_at":"2026-10-28T20:58:01.013507Z","package":{"name":"WSO2 Identity Server","ecosystem":null},"version":"5.10.0.399","basis":"first unaffected version stated in the CVE record"},{"source":"CVE 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record"}],"cvss":6.1,"severity":"Medium","kev":{"listed":false},"epss":{"probability":null,"percentile":null,"score_date":null},"published_at":"2026-10-28T19:21:33.216Z","modified_at":"2026-10-28T19:21:33.216Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-11854","fetched_at":"2026-10-28T20:58:01.013507Z","source_modified_at":"2026-10-28T19:21:33.216Z"}],"sources":["CVE List"],"references":[{"source":"CVE List","url":"https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2025-4850/","tags":["vendor-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-28T19:21:33.216Z","content_hash":"5bee64d0ad8bd330f15e065fb21f66e941d36fd03b14e22f4ed228dc7a69ac24"}}