{"id":"CVE-2023-3087","state":"PUBLISHED","title":"FluentSMTP <= 2.2.4 - Unauthenticated Stored Cross-Site Scripting via Email Subject","description":"The FluentSMTP plugin for WordPress is vulnerable to Stored Cross-Site Scripting via an email subject in versions up to, and including, 2.2.4 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.","publishedAt":"2023-07-12T04:38:52.072Z","updatedAt":"2026-04-08T17:34:20.882Z","severity":{"score":7.2,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N","source":"Wordfence"},"assigner":"Wordfence","products":["techjewel FluentSMTP – WP SMTP Plugin with Amazon SES, SendGrid, MailGun, Postmark, Google and Any SMTP Provider"],"affected":[{"vendor":"techjewel","product":"FluentSMTP – WP SMTP Plugin with Amazon SES, SendGrid, MailGun, Postmark, Google and Any SMTP Provider","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"2.2.4","versionType":"semver"}]}],"references":["https://www.wordfence.com/threat-intel/vulnerabilities/id/fa47a794-e5ce-491d-a10b-c7c5718aa853?source=cve","https://plugins.trac.wordpress.org/changeset/2935217/fluent-smtp/trunk/app/Services/Mailer/BaseHandler.php","https://plugins.trac.wordpress.org/changeset/2935217/fluent-smtp/trunk/app/Models/Logger.php"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:06:08.715Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/3xxx/CVE-2023-3087.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-3087","state":"PUBLISHED","datePublished":"2023-07-12T04:38:52.072Z","dateUpdated":"2026-04-08T17:34:20.882Z","assignerShortName":"Wordfence","assignerOrgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateReserved":"2023-06-03T16:01:20.696Z"},"containers":{"cna":{"title":"FluentSMTP <= 2.2.4 - Unauthenticated Stored Cross-Site Scripting via Email Subject","descriptions":[{"lang":"en","value":"The FluentSMTP plugin for WordPress is vulnerable to Stored Cross-Site Scripting via an email subject in versions up to, and including, 2.2.4 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page."}],"affected":[{"vendor":"techjewel","product":"FluentSMTP – WP SMTP Plugin with Amazon SES, SendGrid, MailGun, Postmark, Google and Any SMTP Provider","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"2.2.4","versionType":"semver"}]}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/fa47a794-e5ce-491d-a10b-c7c5718aa853?source=cve"},{"url":"https://plugins.trac.wordpress.org/changeset/2935217/fluent-smtp/trunk/app/Services/Mailer/BaseHandler.php"},{"url":"https://plugins.trac.wordpress.org/changeset/2935217/fluent-smtp/trunk/app/Models/Logger.php"}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N","baseScore":7.2,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"CWE"}]}],"providerMetadata":{"shortName":"Wordfence","orgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateUpdated":"2026-04-08T17:34:20.882Z"},"credits":[{"lang":"en","type":"finder","value":"Alex Thomas"}],"timeline":[{"time":"2023-06-03T00:00:00.000Z","lang":"en","value":"Discovered"},{"time":"2023-06-05T00:00:00.000Z","lang":"en","value":"Vendor Notified"},{"time":"2023-07-06T00:00:00.000Z","lang":"en","value":"Disclosed"}]},"adp":[{"title":"CVE Program Container","references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/fa47a794-e5ce-491d-a10b-c7c5718aa853?source=cve","tags":["x_transferred"]},{"url":"https://plugins.trac.wordpress.org/changeset/2935217/fluent-smtp/trunk/app/Services/Mailer/BaseHandler.php","tags":["x_transferred"]},{"url":"https://plugins.trac.wordpress.org/changeset/2935217/fluent-smtp/trunk/app/Models/Logger.php","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-02T06:41:04.186Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-02-05T18:38:07.083991Z","id":"CVE-2023-3087","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-02-05T19:39:42.189Z"}}]}}}