{"id":"CVE-2021-25033","aliases":["EUVD-2021-11945","GHSA-gxrq-7hvq-53q3"],"status":"published","title":"Noptin \u003c 1.6.5 - Open Redirect","description":"The WordPress Newsletter Plugin WordPress plugin before 1.6.5 does not validate the to parameter before redirecting the user to its given value, leading to an open redirect issue","severity":{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.02303,"percentile":0.83554,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-601"],"published":"2022-02-14T09:20:45Z","modified":"2026-06-17T03:41:20Z","exploits":[{"source":"nuclei","id":"CVE-2021-25033","title":"Noptin \u003c 1.6.5 - Open Redirect","type":"detection template","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-25033.yaml"}],"products":[{"vendor":"noptin","product":"noptin"},{"vendor":"unknown","product":"wordpress newsletter plugin – noptin"}],"references":[{"url":"https://wpscan.com/vulnerability/c2d2384c-41b9-4aaf-b918-c1cfda58af5c","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://plugins.trac.wordpress.org/changeset/2639592","tags":["x_refsource_CONFIRM","x_transferred","Patch","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-25033"},{"url":"https://github.com/advisories/GHSA-gxrq-7hvq-53q3"}],"sources":{"cve":[{"id":"CVE-2021-25033","title":"Noptin \u003c 1.6.5 - Open Redirect","description":"The WordPress Newsletter Plugin WordPress plugin before 1.6.5 does not validate the to parameter before redirecting the user to its given value, leading to an open redirect issue","status":"published","published":"2022-02-14T09:20:45Z","modified":"2024-08-03T19:49:14.591Z","cwes":["CWE-601"],"updated_at":"2026-11-02T14:32:59.430294Z"}],"euvd":[{"id":"EUVD-2021-11945","description":"The WordPress Newsletter Plugin WordPress plugin before 1.6.5 does not validate the to parameter before redirecting the user to its given value, leading to an open redirect issue","status":"published","published":"2022-02-14T09:20:45Z","modified":"2024-08-03T19:49:14Z","updated_at":"2026-11-03T03:24:54.862767Z"}],"ghsa":[{"id":"GHSA-gxrq-7hvq-53q3","title":"The WordPress Newsletter Plugin WordPress plugin before 1.6.5 does not validate the to parameter...","description":"The WordPress Newsletter Plugin WordPress plugin before 1.6.5 does not validate the to parameter before redirecting the user to its given value, leading to an open redirect issue","status":"published","published":"2022-02-15T00:02:49Z","modified":"2023-02-03T05:05:45Z","cwes":["CWE-601"],"updated_at":"2026-11-02T14:53:47.32068Z"}],"nvd":[{"id":"CVE-2021-25033","description":"The WordPress Newsletter Plugin WordPress plugin before 1.6.5 does not validate the to parameter before redirecting the user to its given value, leading to an open redirect issue","status":"published","published":"2022-02-14T12:15:15.003Z","modified":"2026-06-17T03:41:20.803Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":5.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-601"],"updated_at":"2026-11-02T14:07:04.6896Z"}]}}