{"id":"CVE-2025-6216","aliases":["EUVD-2025-28704","GHSA-7jmp-283p-h6xj"],"status":"published","title":"Allegra calculateTokenExpDate Password Recovery Authentication Bypass Vulnerability","description":"Allegra calculateTokenExpDate Password Recovery Authentication Bypass Vulnerability. This vulnerability allows remote attackers to bypass authentication on affected installations of Allegra. Authentication is not required to exploit this vulnerability.\n\nThe specific flaw exists within the password recovery mechanism. The issue results from reliance upon a predictable value when generating a password reset token. An attacker can leverage this vulnerability to bypass authentication on the application. Was ZDI-CAN-27104.","severity":{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.47775,"percentile":0.98861,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-640"],"published":"2025-06-21T00:08:15Z","modified":"2026-06-17T10:01:24Z","products":[{"vendor":"allegra","product":"allegra"},{"vendor":"alltena","product":"allegra"}],"references":[{"url":"https://www.zerodayinitiative.com/advisories/ZDI-25-410/","tags":["x_research-advisory","Third Party Advisory"]},{"url":"https://alltena.com/en/resources/release-notes/release-notes-for-release-8-1-4-and-release-7-5-2","tags":["vendor-advisory","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-6216"},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-25-410"},{"url":"https://github.com/advisories/GHSA-7jmp-283p-h6xj"}],"sources":{"cve":[{"id":"CVE-2025-6216","title":"Allegra calculateTokenExpDate Password Recovery Authentication Bypass Vulnerability","description":"Allegra calculateTokenExpDate Password Recovery Authentication Bypass Vulnerability. This vulnerability allows remote attackers to bypass authentication on affected installations of Allegra. Authentication is not required to exploit this vulnerability.\n\nThe specific flaw exists within the password recovery mechanism. The issue results from reliance upon a predictable value when generating a password reset token. An attacker can leverage this vulnerability to bypass authentication on the application. Was ZDI-CAN-27104.","status":"published","published":"2025-06-21T00:08:15.716Z","modified":"2025-06-23T16:14:45.285Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-640"],"updated_at":"2026-11-02T14:32:40.072186Z"}],"euvd":[{"id":"EUVD-2025-28704","description":"Allegra calculateTokenExpDate Password Recovery Authentication Bypass Vulnerability. This vulnerability allows remote attackers to bypass authentication on affected installations of Allegra. Authentication is not required to exploit this vulnerability.\n\nThe specific flaw exists within the password recovery mechanism. The issue results from reliance upon a predictable value when generating a password reset token. An attacker can leverage this vulnerability to bypass authentication on the application. Was ZDI-CAN-27104.","status":"published","published":"2025-06-21T00:08:15Z","modified":"2025-06-23T16:14:45Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T20:32:17.832534Z"}],"ghsa":[{"id":"GHSA-7jmp-283p-h6xj","title":"Allegra calculateTokenExpDate Password Recovery Authentication Bypass Vulnerability. This...","description":"Allegra calculateTokenExpDate Password Recovery Authentication Bypass Vulnerability. This vulnerability allows remote attackers to bypass authentication on affected installations of Allegra. Authentication is not required to exploit this vulnerability.\n\nThe specific flaw exists within the password recovery mechanism. The issue results from reliance upon a predictable value when generating a password reset token. An attacker can leverage this vulnerability to bypass authentication on the application. Was ZDI-CAN-27104.","status":"published","published":"2025-06-23T21:31:49Z","modified":"2025-06-23T21:31:56Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-640"],"updated_at":"2026-11-02T15:02:48.872885Z"}],"nvd":[{"id":"CVE-2025-6216","description":"Allegra calculateTokenExpDate Password Recovery Authentication Bypass Vulnerability. This vulnerability allows remote attackers to bypass authentication on affected installations of Allegra. Authentication is not required to exploit this vulnerability.\n\nThe specific flaw exists within the password recovery mechanism. The issue results from reliance upon a predictable value when generating a password reset token. An attacker can leverage this vulnerability to bypass authentication on the application. Was ZDI-CAN-27104.","status":"published","published":"2025-06-21T01:15:28.86Z","modified":"2026-06-17T10:01:24.16Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-640"],"updated_at":"2026-11-02T14:11:14.091082Z"}]}}