{"id":"CVE-2025-1396","state":"PUBLISHED","title":"Username Enumeration in Multiple WSO2 Products with Multi-Attribute Login Enabled","description":"A username enumeration vulnerability exists in multiple WSO2 products when Multi-Attribute Login is enabled. In this configuration, the system returns a distinct \"User does not exist\" error message to the login form, regardless of the validate_username setting. This behavior allows malicious actors to determine which usernames exist in the system based on observable discrepancies in the application's responses.\n\n\nExploitation of this vulnerability could aid in brute-force attacks, targeted phishing campaigns, or other social engineering techniques by confirming the validity of user identifiers within the system.","publishedAt":"2025-09-26T07:52:52.297Z","updatedAt":"2025-09-30T15:43:31.106Z","severity":{"score":3.7,"label":"Low","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","source":"WSO2"},"assigner":"WSO2","products":["WSO2 WSO2 Identity Server","WSO2 WSO2 Open Banking IAM","WSO2 WSO2 Identity Server as Key Manager"],"affected":[{"vendor":"WSO2","product":"WSO2 Identity Server","defaultStatus":"unaffected","versions":[{"version":"0","status":"unknown","lessThan":"5.10.0","versionType":"custom"},{"version":"5.10.0","status":"affected","lessThan":"5.10.0.346","versionType":"custom"},{"version":"5.11.0","status":"affected","lessThan":"5.11.0.395","versionType":"custom"},{"version":"6.0.0","status":"affected","lessThan":"6.0.0.231","versionType":"custom"},{"version":"6.1.0","status":"affected","lessThan":"6.1.0.223","versionType":"custom"}]},{"vendor":"WSO2","product":"WSO2 Open Banking IAM","defaultStatus":"unaffected","versions":[{"version":"2.0.0","status":"affected","lessThan":"2.0.0.390","versionType":"custom"}]},{"vendor":"WSO2","product":"WSO2 Identity Server as Key Manager","defaultStatus":"unaffected","versions":[{"version":"5.10.0","status":"affected","lessThan":"5.10.0.339","versionType":"custom"}]}],"references":["https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2025/WSO2-2025-3983/"],"weaknesses":["CWE-203"],"ingestedAt":"2026-10-29T20:08:39.238Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/1xxx/CVE-2025-1396.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-1396","state":"PUBLISHED","datePublished":"2025-09-26T07:52:52.297Z","dateUpdated":"2025-09-30T15:43:31.106Z","assignerShortName":"WSO2","assignerOrgId":"ed10eef1-636d-4fbe-9993-6890dfa878f8","dateReserved":"2025-02-17T14:17:42.038Z"},"containers":{"cna":{"title":"Username Enumeration in Multiple WSO2 Products with Multi-Attribute Login Enabled","descriptions":[{"lang":"en","value":"A username enumeration vulnerability exists in multiple WSO2 products when Multi-Attribute Login is enabled. In this configuration, the system returns a distinct \"User does not exist\" error message to the login form, regardless of the validate_username setting. This behavior allows malicious actors to determine which usernames exist in the system based on observable discrepancies in the application's responses.\n\n\nExploitation of this vulnerability could aid in brute-force attacks, targeted phishing campaigns, or other social engineering techniques by confirming the validity of user identifiers within the system."}],"affected":[{"vendor":"WSO2","product":"WSO2 Identity Server","defaultStatus":"unaffected","versions":[{"version":"0","status":"unknown","lessThan":"5.10.0","versionType":"custom"},{"version":"5.10.0","status":"affected","lessThan":"5.10.0.346","versionType":"custom"},{"version":"5.11.0","status":"affected","lessThan":"5.11.0.395","versionType":"custom"},{"version":"6.0.0","status":"affected","lessThan":"6.0.0.231","versionType":"custom"},{"version":"6.1.0","status":"affected","lessThan":"6.1.0.223","versionType":"custom"}]},{"vendor":"WSO2","product":"WSO2 Open Banking IAM","defaultStatus":"unaffected","versions":[{"version":"2.0.0","status":"affected","lessThan":"2.0.0.390","versionType":"custom"}]},{"vendor":"WSO2","product":"WSO2 Identity Server as Key Manager","defaultStatus":"unaffected","versions":[{"version":"5.10.0","status":"affected","lessThan":"5.10.0.339","versionType":"custom"}]}],"references":[{"url":"https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2025/WSO2-2025-3983/","tags":["vendor-advisory"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":3.7,"baseSeverity":"LOW","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-203","description":"CWE-203 Observable Discrepancy","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"WSO2","orgId":"ed10eef1-636d-4fbe-9993-6890dfa878f8","dateUpdated":"2025-09-26T08:19:45.872Z"},"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","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/2025/WSO2-2025-3983/#solution\"><span style=\"background-color: transparent;\">https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2025/WSO2-2025-3983/#solution</span></a> <br>"}],"value":"Follow the instructions given on  https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2025/WSO2-2025-3983/#solution https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2025/WSO2-2025-3983/#solution"}],"source":{"advisory":"WSO2-2025-3983","discovery":"INTERNAL"},"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-09-30T15:43:25.782305Z","id":"CVE-2025-1396","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":"2025-09-30T15:43:31.106Z"}}]}}}