{"id":"CVE-2021-39325","aliases":["EUVD-2021-25686","GHSA-q4c3-5fjh-5v6h"],"status":"published","title":"OptinMonster \u003c= 2.6.0 Reflected Cross-Site Scripting","description":"The OptinMonster WordPress plugin is vulnerable to Reflected Cross-Site Scripting due to insufficient input validation in the load_previews function found in the ~/OMAPI/Output.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 2.6.0.","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":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00905,"percentile":0.6029,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2021-09-20T19:59:22Z","modified":"2026-06-17T04:03:33Z","products":[{"vendor":"optinmonster","product":"optinmonster"},{"vendor":"optinmonster popup builder team","product":"optinmonster"}],"references":[{"url":"https://www.wordfence.com/vulnerability-advisories/#CVE-2021-39325","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026old=2595758%40optinmonster\u0026new=2595758%40optinmonster\u0026sfp_email=\u0026sfph_mail=#file2","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-39325"},{"url":"https://github.com/advisories/GHSA-q4c3-5fjh-5v6h"}],"sources":{"cve":[{"id":"CVE-2021-39325","title":"OptinMonster \u003c= 2.6.0 Reflected Cross-Site Scripting","description":"The OptinMonster WordPress plugin is vulnerable to Reflected Cross-Site Scripting due to insufficient input validation in the load_previews function found in the ~/OMAPI/Output.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 2.6.0.","status":"published","published":"2021-09-20T19:59:22.642Z","modified":"2025-03-31T18:21:20.678Z","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":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:33:09.540052Z"}],"euvd":[{"id":"EUVD-2021-25686","description":"The OptinMonster WordPress plugin is vulnerable to Reflected Cross-Site Scripting due to insufficient input validation in the load_previews function found in the ~/OMAPI/Output.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 2.6.0.","status":"published","published":"2021-09-20T19:59:22Z","modified":"2025-03-31T18:21:20Z","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"}],"updated_at":"2026-11-02T20:52:46.2495Z"}],"ghsa":[{"id":"GHSA-q4c3-5fjh-5v6h","title":"The OptinMonster WordPress plugin is vulnerable to Reflected Cross-Site Scripting due to...","description":"The OptinMonster WordPress plugin is vulnerable to Reflected Cross-Site Scripting due to insufficient input validation in the load_previews function found in the ~/OMAPI/Output.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 2.6.0.","status":"published","published":"2022-05-24T19:15:01Z","modified":"2023-01-30T05:02:16Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:46:36.123786Z"}],"nvd":[{"id":"CVE-2021-39325","description":"The OptinMonster WordPress plugin is vulnerable to Reflected Cross-Site Scripting due to insufficient input validation in the load_previews function found in the ~/OMAPI/Output.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 2.6.0.","status":"published","published":"2021-09-20T20:15:11.65Z","modified":"2026-06-17T04:03:33.153Z","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":"secondary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:06:58.933037Z"}]}}