{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-90981", "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "state": "PUBLISHED", "assignerShortName": "Wordfence", "dateReserved": "2026-09-14T13:44:55.688Z", "datePublished": "2026-09-18T07:40:00.514Z", "dateUpdated": "2026-09-18T07:40:00.514Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "shortName": "Wordfence", "dateUpdated": "2026-09-18T07:40:00.514Z"}, "affected": [{"vendor": "satollo", "product": "Newsletter \u2013 Send awesome emails from WordPress", "versions": [{"version": "0", "status": "affected", "lessThanOrEqual": "9.3.8", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "The Newsletter \u2013 Send awesome emails from WordPress plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'nn' parameter in all versions up to, and including, 9.3.8 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. Successful exploitation requires the victim to be a logged-in administrator, as the antibot check auto-passes for authenticated users, routing the unsanitized payload through the administrator-visible output branch of dienow()."}], "title": "Newsletter <= 9.3.8 - Reflected Cross-Site Scripting via 'nn' Parameter", "references": [{"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/44b3b015-2482-4b80-b208-73f1abe21b27?source=cve"}, {"url": "https://plugins.trac.wordpress.org/browser/newsletter/tags/9.3.8/includes/module-base.php#L1310"}, {"url": "https://plugins.trac.wordpress.org/browser/newsletter/tags/9.3.8/subscription/subscription.php#L238"}, {"url": "https://plugins.trac.wordpress.org/browser/newsletter/tags/9.3.8/includes/antispam.php#L35"}, {"url": "https://plugins.trac.wordpress.org/browser/newsletter/tags/9.3.8/subscription/subscription.php#L682"}, {"url": "https://plugins.trac.wordpress.org/browser/newsletter/tags/9.3.8/plugin.php#L156"}, {"url": "https://plugins.trac.wordpress.org/changeset?reponame=&old=3695457%40newsletter&new=3695457%40newsletter"}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')", "cweId": "CWE-79", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "baseScore": 6.1, "baseSeverity": "MEDIUM"}}], "credits": [{"lang": "en", "type": "finder", "value": "Yuto Hyakumoto"}], "timeline": [{"time": "2026-09-14T14:00:01.000Z", "lang": "en", "value": "Vendor Notified"}, {"time": "2026-09-17T18:40:11.000Z", "lang": "en", "value": "Disclosed"}]}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Newsletter \u2013 Send awesome emails from WordPress", "vendor": "satollo", "versions": [{"lessThanOrEqual": "9.3.8", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "security@wordfence.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The Newsletter \u2013 Send awesome emails from WordPress plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'nn' parameter in all versions up to, and including, 9.3.8 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. Successful exploitation requires the victim to be a logged-in administrator, as the antibot check auto-passes for authenticated users, routing the unsanitized payload through the administrator-visible output branch of dienow()."}], "id": "CVE-2026-90981", "lastModified": "2026-09-18T08:17:01.960", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 2.7, "source": "security@wordfence.com", "type": "Primary"}]}, "published": "2026-09-18T08:17:01.960", "references": [{"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/newsletter/tags/9.3.8/includes/antispam.php#L35"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/newsletter/tags/9.3.8/includes/module-base.php#L1310"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/newsletter/tags/9.3.8/plugin.php#L156"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/newsletter/tags/9.3.8/subscription/subscription.php#L238"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/newsletter/tags/9.3.8/subscription/subscription.php#L682"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/changeset?reponame=&old=3695457%40newsletter&new=3695457%40newsletter"}, {"source": "security@wordfence.com", "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/44b3b015-2482-4b80-b208-73f1abe21b27?source=cve"}], "sourceIdentifier": "security@wordfence.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "security@wordfence.com", "type": "Primary"}]}

{}

{}