{"id":"CVE-2025-10503","state":"PUBLISHED","title":"Reflected Cross-Site Scripting via Authentication Endpoint in WSO2 Identity Server","description":"The authentication endpoint accepts user-supplied input without enforcing expected validation constraints, leading to a lack of proper output encoding. This allows for the injection of malicious JavaScript payloads, enabling reflected cross-site scripting.\n\nAn attacker can leverage this vulnerability to redirect the user's browser to a malicious website, modify the user interface of the web page, retrieve information from the browser, or cause other harmful actions. However, due to the protection of session-related cookies with the httpOnly flag, session hijacking is not possible.","publishedAt":"2026-04-29T08:08:37.335Z","updatedAt":"2026-04-29T12:28:52.278Z","severity":{"score":6.1,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","source":"WSO2"},"assigner":"WSO2","products":["WSO2 WSO2 Identity Server"],"affected":[{"vendor":"WSO2","product":"WSO2 Identity Server","defaultStatus":"unaffected","versions":[{"version":"7.1.0","status":"affected","lessThan":"7.1.0.28","versionType":"custom"}]}],"references":["https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2025-4577/"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:08:20.985Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/10xxx/CVE-2025-10503.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-10503","state":"PUBLISHED","datePublished":"2026-04-29T08:08:37.335Z","dateUpdated":"2026-04-29T12:28:52.278Z","assignerShortName":"WSO2","assignerOrgId":"ed10eef1-636d-4fbe-9993-6890dfa878f8","dateReserved":"2025-09-16T04:58:57.289Z"},"containers":{"cna":{"title":"Reflected Cross-Site Scripting via Authentication Endpoint in WSO2 Identity Server","descriptions":[{"lang":"en","value":"The authentication endpoint accepts user-supplied input without enforcing expected validation constraints, leading to a lack of proper output encoding. This allows for the injection of malicious JavaScript payloads, enabling reflected cross-site scripting.\n\nAn attacker can leverage this vulnerability to redirect the user's browser to a malicious website, modify the user interface of the web page, retrieve information from the browser, or cause other harmful actions. However, due to the protection of session-related cookies with the httpOnly flag, session hijacking is not possible."}],"affected":[{"vendor":"WSO2","product":"WSO2 Identity Server","defaultStatus":"unaffected","versions":[{"version":"7.1.0","status":"affected","lessThan":"7.1.0.28","versionType":"custom"}]}],"references":[{"url":"https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2025-4577/","tags":["vendor-advisory"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE","baseSeverity":"MEDIUM","baseScore":6.1,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"CWE"}]}],"providerMetadata":{"shortName":"WSO2","orgId":"ed10eef1-636d-4fbe-9993-6890dfa878f8","dateUpdated":"2026-04-29T08:08:37.335Z"},"impacts":[{"capecId":"CAPEC-20","descriptions":[{"lang":"en","value":"CAPEC-20 CAPEC-20: Cross-site Scripting"}]}],"cpeApplicability":[{"operator":"OR","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:wso2:wso2_identity_server:*:*:*:*:*:*:*:*","versionStartIncluding":"7.1.0","versionEndExcluding":"7.1.0.28"}]}]}],"solutions":[{"lang":"en","value":"Follow the instructions given on https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2025-4577/#solution","supportingMedia":[{"type":"text/html","base64":false,"value":"<span style=\"background-color: transparent;\">Follow the instructions given on </span><a target=\"_blank\" rel=\"nofollow\" href=\"https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2025-4577/#solution\"><span style=\"background-color: transparent;\">https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2025-4577/#solution</span></a> <br>"}]}],"source":{"advisory":"WSO2-2025-4577","discovery":"INTERNAL"},"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-29T12:28:07.158383Z","id":"CVE-2025-10503","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-04-29T12:28:52.278Z"}}]}}}