{"id":"CVE-2026-107828","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-107828","generatedAt":"2026-10-27T22:46:25.024Z","title":"Jivejdon through 5.0 contains an authentication bypass vulnerability that allows unauthenticated attackers to access Weibo-created accounts by deriving predictable credentials from public Weibo user IDs.","description":"Jivejdon through 5.0 contains an authentication bypass vulnerability that allows unauthenticated attackers to access Weibo-created accounts by deriving predictable credentials from public Weibo user IDs. OAuthAccountServiceImp.transferSina() sets the password to the first four digits of the Weibo ID, letting attackers log in through normal form login to read or post as victims.","published":"2026-10-08T22:17:30.000Z","lastModified":"2026-10-09T16:45:02.000Z","status":"Deferred","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":6.9,"severity":"MEDIUM","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-1391"],"affected":[],"epss":{"score":0.00343,"percentile":0.27623,"date":"2026-10-26","history":[{"date":"2026-10-09","score":0.00343,"percentile":0.25805}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.34%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-08T22:17:30.000Z","detail":{"score":"6.9","severity":"MEDIUM","publishedAt":"2026-10-08T22:17:30.480Z"},"summary":"New CVE, medium severity (CVSS 6.9)."}],"references":[{"url":"https://github.com/banq/jivejdon","source":"disclosure@vulncheck.com"},{"url":"https://github.com/banq/jivejdon/blob/ee67a65e65228644a71c8317d7e34deea50f95ef/src/main/java/com/jdon/jivejdon/api/impl/account/OAuthAccountServiceImp.java#L192-L213","source":"disclosure@vulncheck.com"},{"url":"https://github.com/banq/jivejdon/blob/ee67a65e65228644a71c8317d7e34deea50f95ef/src/main/java/com/jdon/jivejdon/presentation/action/account/oauth/SinaUserCallBackAction.java#L76-L80","source":"disclosure@vulncheck.com"},{"url":"https://github.com/banq/jivejdon/issues/28","source":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/jivejdon-through-5.0-predictable-passwords-via-sina-weibo-oauth-login","source":"disclosure@vulncheck.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-107828","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."}