{"id":"CVE-2020-27687","aliases":["EUVD-2020-20191","GHSA-gxgw-6q4v-hcj8"],"status":"published","title":"ThingsBoard before v3.2 is vulnerable to Host header injection in password-reset emails. This...","description":"ThingsBoard before v3.2 is vulnerable to Host header injection in password-reset emails. This allows an attacker to send malicious links in password-reset emails to victims, pointing to an attacker-controlled server. Lack of validation of the Host header allows this to happen.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.01539,"percentile":0.75255,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20","CWE-74"],"published":"2020-12-18T18:27:23Z","modified":"2026-10-20T10:53:21Z","products":[{"vendor":"thingsboard","product":"thingsboard"}],"references":[{"url":"https://github.com/thingsboard/thingsboard/commits/master","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory"]},{"url":"https://gist.github.com/vin01/26a8bb13233acd9425e7575a7ad4c936","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-27687"},{"url":"https://github.com/advisories/GHSA-gxgw-6q4v-hcj8"}],"sources":{"cve":[{"id":"CVE-2020-27687","description":"ThingsBoard before v3.2 is vulnerable to Host header injection in password-reset emails. This allows an attacker to send malicious links in password-reset emails to victims, pointing to an attacker-controlled server. Lack of validation of the Host header allows this to happen.","status":"published","published":"2020-12-18T18:27:23Z","modified":"2024-08-04T16:18:45.658Z","updated_at":"2026-11-02T14:35:53.552996Z"}],"euvd":[{"id":"EUVD-2020-20191","description":"ThingsBoard before v3.2 is vulnerable to Host header injection in password-reset emails. This allows an attacker to send malicious links in password-reset emails to victims, pointing to an attacker-controlled server. Lack of validation of the Host header allows this to happen.","status":"published","published":"2020-12-18T18:27:23Z","modified":"2024-08-04T16:18:45Z","updated_at":"2026-11-03T03:07:12.435876Z"}],"ghsa":[{"id":"GHSA-gxgw-6q4v-hcj8","title":"ThingsBoard before v3.2 is vulnerable to Host header injection in password-reset emails. This...","description":"ThingsBoard before v3.2 is vulnerable to Host header injection in password-reset emails. This allows an attacker to send malicious links in password-reset emails to victims, pointing to an attacker-controlled server. Lack of validation of the Host header allows this to happen.","status":"published","published":"2022-05-24T17:36:54Z","modified":"2023-01-29T05:05:06Z","cwes":["CWE-74"],"updated_at":"2026-11-02T14:45:42.563524Z"}],"nvd":[{"id":"CVE-2020-27687","description":"ThingsBoard before v3.2 is vulnerable to Host header injection in password-reset emails. This allows an attacker to send malicious links in password-reset emails to victims, pointing to an attacker-controlled server. Lack of validation of the Host header allows this to happen.","status":"published","published":"2020-12-18T19:15:14.767Z","modified":"2026-06-17T03:09:29.23Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/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-20","CWE-74"],"updated_at":"2026-11-02T14:06:27.73474Z"}],"osv":[{"id":"CVE-2020-27687","description":"ThingsBoard before v3.2 is vulnerable to Host header injection in password-reset emails. This allows an attacker to send malicious links in password-reset emails to victims, pointing to an attacker-controlled server. Lack of validation of the Host header allows this to happen.","status":"published","published":"2020-12-18T19:15:14.767Z","modified":"2026-10-20T10:53:21.196656151Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:16.248747Z"}]}}