{"id":"CVE-2019-4052","url":"https://www.cyber-defence.io/tools/cve/CVE-2019-4052","generatedAt":"2026-10-27T21:15:27.189Z","title":"IBM API Connect 2018.1 and 2018.4.1.2 apis can be leveraged by unauthenticated users to discover login ids of registered users.","description":"IBM API Connect 2018.1 and 2018.4.1.2 apis can be leveraged by unauthenticated users to discover login ids of registered users. IBM X-Force ID: 156544.","published":"2019-03-22T19:29:00.000Z","lastModified":"2026-06-17T02:36:05.000Z","status":"Modified","sourceIdentifier":"psirt@us.ibm.com","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},"cwe":[],"affected":["ibm/api connect"],"epss":{"score":0.01907,"percentile":0.79606,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (1.91%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://www.ibm.com/support/docview.wss?uid=ibm10874248","tags":["Patch","Vendor Advisory"],"source":"psirt@us.ibm.com"},{"url":"http://www.securityfocus.com/bid/107559","tags":["Third Party Advisory","VDB Entry"],"source":"psirt@us.ibm.com"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/156544","tags":["Broken Link","VDB Entry","Vendor Advisory"],"source":"psirt@us.ibm.com"},{"url":"http://www.ibm.com/support/docview.wss?uid=ibm10874248","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/107559","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/156544","tags":["Broken Link","VDB Entry","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-4052","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}