{"id":"CVE-2018-6654","aliases":["EUVD-2018-18401","GHSA-mj32-gm74-p82v"],"status":"published","title":"The Grammarly extension before 2018-02-02 for Chrome allows remote attackers to discover...","description":"The Grammarly extension before 2018-02-02 for Chrome allows remote attackers to discover authentication tokens via an 'action: \"user\"' request to iframe.gr_-ifr, because the exposure of these tokens is not restricted to any specific web site.","severity":{"version":"3.0","score":8.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00506,"percentile":0.43466,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-346"],"published":"2018-02-06T01:00:00Z","modified":"2026-06-17T02:02:09Z","products":[{"vendor":"grammarly","product":"grammarly"}],"references":[{"url":"https://bugs.chromium.org/p/project-zero/issues/detail?id=1527","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-6654"},{"url":"https://github.com/advisories/GHSA-mj32-gm74-p82v"}],"sources":{"cve":[{"id":"CVE-2018-6654","description":"The Grammarly extension before 2018-02-02 for Chrome allows remote attackers to discover authentication tokens via an 'action: \"user\"' request to iframe.gr_-ifr, because the exposure of these tokens is not restricted to any specific web site.","status":"published","published":"2018-02-06T01:00:00Z","modified":"2024-09-17T01:41:14.664Z","updated_at":"2026-11-02T14:35:05.961936Z"}],"euvd":[{"id":"EUVD-2018-18401","description":"The Grammarly extension before 2018-02-02 for Chrome allows remote attackers to discover authentication tokens via an 'action: \"user\"' request to iframe.gr_-ifr, because the exposure of these tokens is not restricted to any specific web site.","status":"published","published":"2018-02-06T01:00:00Z","modified":"2024-09-17T01:41:14Z","updated_at":"2026-11-03T00:28:47.497259Z"}],"ghsa":[{"id":"GHSA-mj32-gm74-p82v","title":"The Grammarly extension before 2018-02-02 for Chrome allows remote attackers to discover...","description":"The Grammarly extension before 2018-02-02 for Chrome allows remote attackers to discover authentication tokens via an 'action: \"user\"' request to iframe.gr_-ifr, because the exposure of these tokens is not restricted to any specific web site.","status":"published","published":"2022-05-13T01:53:09Z","modified":"2023-02-02T05:02:19Z","cvss":[{"version":"3.0","score":8.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-346"],"updated_at":"2026-11-02T14:51:24.995331Z"}],"nvd":[{"id":"CVE-2018-6654","description":"The Grammarly extension before 2018-02-02 for Chrome allows remote attackers to discover authentication tokens via an 'action: \"user\"' request to iframe.gr_-ifr, because the exposure of these tokens is not restricted to any specific web site.","status":"published","published":"2018-02-06T01:29:00.257Z","modified":"2026-06-17T02:02:09.017Z","cvss":[{"version":"3.0","score":8.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-346"],"updated_at":"2026-11-02T14:04:22.897995Z"}]}}