{"id":"CVE-2018-16495","aliases":["EUVD-2018-8306","GHSA-gvq8-8f97-wwvq"],"status":"published","title":"In VOS user session identifier (authentication token) is issued to the browser prior to...","description":"In VOS user session identifier (authentication token) is issued to the browser prior to authentication but is not changed after the user successfully logs into the application. Failing to issue a new session ID following a successful login introduces the possibility for an attacker to set up a trap session on the device the victim is likely to login with.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00911,"percentile":0.6025,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-384"],"published":"2021-05-26T18:46:08Z","modified":"2026-06-17T01:44:23Z","products":[{"vendor":"versa-networks","product":"versa_operating_system"}],"references":[{"url":"https://hackerone.com/reports/1168192","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-16495"},{"url":"https://github.com/advisories/GHSA-gvq8-8f97-wwvq"}],"sources":{"cve":[{"id":"CVE-2018-16495","description":"In VOS user session identifier (authentication token) is issued to the browser prior to authentication but is not changed after the user successfully logs into the application. Failing to issue a new session ID following a successful login introduces the possibility for an attacker to set up a trap session on the device the victim is likely to login with.","status":"published","published":"2021-05-26T18:46:08Z","modified":"2024-08-05T10:24:32.613Z","cwes":["CWE-384"],"updated_at":"2026-11-02T14:35:11.072321Z"}],"euvd":[{"id":"EUVD-2018-8306","description":"In VOS user session identifier (authentication token) is issued to the browser prior to authentication but is not changed after the user successfully logs into the application. Failing to issue a new session ID following a successful login introduces the possibility for an attacker to set up a trap session on the device the victim is likely to login with.","status":"published","published":"2021-05-26T18:46:08Z","modified":"2024-08-05T10:24:32Z","updated_at":"2026-11-03T02:39:41.299131Z"}],"ghsa":[{"id":"GHSA-gvq8-8f97-wwvq","title":"In VOS user session identifier (authentication token) is issued to the browser prior to...","description":"In VOS user session identifier (authentication token) is issued to the browser prior to authentication but is not changed after the user successfully logs into the application. Failing to issue a new session ID following a successful login introduces the possibility for an attacker to set up a trap session on the device the victim is likely to login with.","status":"published","published":"2022-05-24T19:03:19Z","modified":"2023-01-29T05:06:48Z","cwes":["CWE-384"],"updated_at":"2026-11-02T14:46:05.929333Z"}],"nvd":[{"id":"CVE-2018-16495","description":"In VOS user session identifier (authentication token) is issued to the browser prior to authentication but is not changed after the user successfully logs into the application. Failing to issue a new session ID following a successful login introduces the possibility for an attacker to set up a trap session on the device the victim is likely to login with.","status":"published","published":"2021-05-26T19:15:08.573Z","modified":"2026-06-17T01:44:23.677Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.5,"vector":"AV:N/AC:L/Au:S/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-384"],"updated_at":"2026-11-02T14:05:00.565712Z"}]}}