{"id":"CVE-2025-24391","state":"PUBLISHED","title":"Possible user enumeration","description":"A vulnerability in the External Interface of OTRS allows conclusions to be drawn about the existence of user accounts through different HTTP response codes and messages. This enables an attacker to systematically identify valid email addresses.\n\nThis issue affects: \n\n  *  OTRS 7.0.X\n\n  *  OTRS 8.0.X\n  *  OTRS 2023.X\n  *  OTRS 2024.X\n  *  OTRS 2025.X","publishedAt":"2025-07-14T08:15:58.668Z","updatedAt":"2025-07-14T12:58:02.638Z","severity":{"score":5.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","source":"OTRS"},"assigner":"OTRS","products":["OTRS AG OTRS"],"affected":[{"vendor":"OTRS AG","product":"OTRS","defaultStatus":"affected","versions":[{"version":"7.0.x","status":"affected"},{"version":"8.0.x","status":"affected"},{"version":"2023.x","status":"affected"},{"version":"2024.x","status":"affected"},{"version":"2025.x","status":"affected","lessThanOrEqual":"2025.5.x","versionType":"Patch"}],"modules":["External Interface"]}],"references":["https://otrs.com/release-notes/otrs-security-advisory-2025-07/"],"weaknesses":["CWE-203"],"ingestedAt":"2026-10-29T20:08:47.682Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/24xxx/CVE-2025-24391.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-24391","state":"PUBLISHED","datePublished":"2025-07-14T08:15:58.668Z","dateUpdated":"2025-07-14T12:58:02.638Z","assignerShortName":"OTRS","assignerOrgId":"2e1bf29f-dc29-4ed8-830c-7b9348b6f0e8","dateReserved":"2025-01-21T09:09:58.721Z"},"containers":{"cna":{"title":"Possible user enumeration","descriptions":[{"lang":"en","value":"A vulnerability in the External Interface of OTRS allows conclusions to be drawn about the existence of user accounts through different HTTP response codes and messages. This enables an attacker to systematically identify valid email addresses.\n\nThis issue affects: \n\n  *  OTRS 7.0.X\n\n  *  OTRS 8.0.X\n  *  OTRS 2023.X\n  *  OTRS 2024.X\n  *  OTRS 2025.X"}],"affected":[{"vendor":"OTRS AG","product":"OTRS","defaultStatus":"affected","versions":[{"version":"7.0.x","status":"affected"},{"version":"8.0.x","status":"affected"},{"version":"2023.x","status":"affected"},{"version":"2024.x","status":"affected"},{"version":"2025.x","status":"affected","lessThanOrEqual":"2025.5.x","versionType":"Patch"}],"modules":["External Interface"]}],"references":[{"url":"https://otrs.com/release-notes/otrs-security-advisory-2025-07/"}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/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":"OTRS","orgId":"2e1bf29f-dc29-4ed8-830c-7b9348b6f0e8","dateUpdated":"2025-07-14T08:15:58.668Z"},"credits":[{"lang":"en","type":"reporter","value":"Special thanks to David Silva for reporting this vulnerability."}],"datePublic":"2025-07-14T07:00:00.000Z","impacts":[{"capecId":"CAPEC-575","descriptions":[{"lang":"en","value":"CAPEC-575 Account Footprinting"}]}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Update to OTRS 2025.6.1. or later. Please note that there will be no OTRS 7 patches"}],"value":"Update to OTRS 2025.6.1. or later. Please note that there will be no OTRS 7 patches"}],"source":{"advisory":"OSA-2025-07","defect":["Issue#3743","Ticket#2024121142001403"],"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 0.1.0-dev"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-07-14T12:57:40.250849Z","id":"CVE-2025-24391","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-07-14T12:58:02.638Z"}}]}}}