{"id":"CVE-2018-19941","aliases":["EUVD-2018-11612","GHSA-vhv6-87pm-667v"],"status":"published","title":"Cleartext Storage of Sensitive Information in Cookies","description":"A vulnerability has been reported to affect QNAP NAS. If exploited, this vulnerability allows an attacker to access sensitive information stored in cleartext inside cookies via certain widely-available tools. QNAP have already fixed this vulnerability in the following versions: QTS 4.5.1.1456 build 20201015 (and later) QuTS hero h4.5.1.1472 build 20201031 (and later) QuTScloud c4.5.2.1379 build 20200730 (and later)","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.00666,"percentile":0.52097,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-312","CWE-315"],"published":"2020-12-31T16:33:27Z","modified":"2026-06-17T01:50:09Z","products":[{"vendor":"qnap","product":"qts"},{"vendor":"qnap","product":"quts_hero"},{"vendor":"qnap","product":"qutscloud"},{"vendor":"qnap systems inc.","product":"qts"},{"vendor":"qnap systems inc.","product":"quts hero"},{"vendor":"qnap systems inc.","product":"qutscloud"}],"references":[{"url":"https://www.qnap.com/zh-tw/security-advisory/qsa-20-23","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-19941"},{"url":"https://github.com/advisories/GHSA-vhv6-87pm-667v"}],"sources":{"cve":[{"id":"CVE-2018-19941","title":"Cleartext Storage of Sensitive Information in Cookies","description":"A vulnerability has been reported to affect QNAP NAS. If exploited, this vulnerability allows an attacker to access sensitive information stored in cleartext inside cookies via certain widely-available tools. QNAP have already fixed this vulnerability in the following versions: QTS 4.5.1.1456 build 20201015 (and later) QuTS hero h4.5.1.1472 build 20201031 (and later) QuTScloud c4.5.2.1379 build 20200730 (and later)","status":"published","published":"2020-12-31T16:33:27.622Z","modified":"2024-09-16T23:50:48.219Z","cwes":["CWE-315"],"updated_at":"2026-11-02T14:35:03.288698Z"}],"euvd":[{"id":"EUVD-2018-11612","description":"A vulnerability has been reported to affect QNAP NAS. If exploited, this vulnerability allows an attacker to access sensitive information stored in cleartext inside cookies via certain widely-available tools. QNAP have already fixed this vulnerability in the following versions: QTS 4.5.1.1456 build 20201015 (and later) QuTS hero h4.5.1.1472 build 20201031 (and later) QuTScloud c4.5.2.1379 build 20200730 (and later)","status":"published","published":"2020-12-31T16:33:27Z","modified":"2024-09-16T23:50:48Z","updated_at":"2026-11-03T00:29:04.923307Z"}],"ghsa":[{"id":"GHSA-vhv6-87pm-667v","title":"A vulnerability has been reported to affect QNAP NAS. If exploited, this vulnerability allows an...","description":"A vulnerability has been reported to affect QNAP NAS. If exploited, this vulnerability allows an attacker to access sensitive information stored in cleartext inside cookies via certain widely-available tools. QNAP have already fixed this vulnerability in the following versions: QTS 4.5.1.1456 build 20201015 (and later) QuTS hero h4.5.1.1472 build 20201031 (and later) QuTScloud c4.5.2.1379 build 20200730 (and later)","status":"published","published":"2022-05-24T17:37:33Z","modified":"2023-01-29T05:05:52Z","cwes":["CWE-312"],"updated_at":"2026-11-02T14:45:53.730969Z"}],"nvd":[{"id":"CVE-2018-19941","description":"A vulnerability has been reported to affect QNAP NAS. If exploited, this vulnerability allows an attacker to access sensitive information stored in cleartext inside cookies via certain widely-available tools. QNAP have already fixed this vulnerability in the following versions: QTS 4.5.1.1456 build 20201015 (and later) QuTS hero h4.5.1.1472 build 20201031 (and later) QuTScloud c4.5.2.1379 build 20200730 (and later)","status":"published","published":"2020-12-31T17:15:12.32Z","modified":"2026-06-17T01:50:09.107Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-315","CWE-312"],"updated_at":"2026-11-02T14:05:00.03074Z"}]}}