https://vulnerability.circl.lu Contains only the most 10 recent sightings. http://www.rssboard.org/rss-specification python-feedgen en Sun, 11 Oct 2026 03:00:36 +0000 https://vulnerability.circl.lu/sighting/681de859-9403-49f9-8902-ddba3761ae0c/export {"uuid": "681de859-9403-49f9-8902-ddba3761ae0c", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-103482", "type": "seen", "source": "https://infosec.exchange/users/cve/statuses/117414999084604768", "content": "CVE-2026-103482 Simple Newsletter Plugin <= 4.3.10 - Unauthenticated Stored Cross-Site Scripting via Subscriber Custom Field via Manage Preferences Form + Campaign Preview noptin_key Pivot The Simple Newsletter Plugin \u2013 Noptin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'noptin_fields[<custom_field_merge_tag>] (e.g. first_name)' parameter in all versions up to, and including, 4.3.10 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. The attack chain requires a published campaign post whose body contains a [[subscriber.*]] merge tag; the unauthenticated attacker first POSTs the entity-encoded payload to the public manage_preferences form (which issues its own nonce on the same page), then pivots execution by embedding their confirm_key in a campaign preview URL sent to a privileged user via social engineering.\nhttps://www.cve.org/CVERecord?id=CVE-2026-103482https://www.wordfence.com/threat-intel/vulnerabilities/id/e5f8afa3-f20c-4dfb-bcc6-2682f68723ca?source=cvehttps://plugins.trac.wordpress.org/browser/newsletter-optin-box/tags/4.3.10/build/Emails/Preview.php#L161https://plugins.trac.wordpress.org/browser/newsletter-optin-box/tags/4.3.10/build/Emails/Generate/Generator.php#L548https://plugins.trac.wordpress.org/browser/newsletter-optin-box/tags/4.3.10/build/Core/Dynamic_Content_Tags.php#L507https://plugins.trac.wordpress.org/browser/newsletter-optin-box/tags/4.3.10/build/Core/Dynamic_Content_Tags.php#L361https://plugins.trac.wordpress.org/browser/newsletter-optin-box/tags/4.3.10/build/Core/Dynamic_Content_Tags.php#L695https://plugins.trac.wordpress.org/browser/newsletter-optin-box/tags/4.3.10/build/Subscribers/functions.php#L937https://plugins.trac.wordpress.org/browser/newsletter-optin-box/tags/4.3.10/build/Subscribers/Manage_Preferences.php#L255https://plugins.trac.wordpress.org/browser/newsletter-optin-box/tags/4.3.10/vendor/hizzle/store/src/Prop.php#L626https://github.com/hizzle-co/noptin/compare/4.3.10...4.4.0#wordpress #picocodes #Noptin\u2013Newsletter,NewPostNotifications&EmailAutomation#CVE_2026_103482#bot", "creation_timestamp": "2026-10-10T05:38:24.407241Z"} {"uuid": "681de859-9403-49f9-8902-ddba3761ae0c", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-103482", "type": "seen", "source": "https://infosec.exchange/users/cve/statuses/117414999084604768", "content": "CVE-2026-103482 Simple Newsletter Plugin <= 4.3.10 - Unauthenticated Stored Cross-Site Scripting via Subscriber Custom Field via Manage Preferences Form + Campaign Preview noptin_key Pivot The Simple Newsletter Plugin \u2013 Noptin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'noptin_fields[<custom_field_merge_tag>] (e.g. first_name)' parameter in all versions up to, and including, 4.3.10 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. The attack chain requires a published campaign post whose body contains a [[subscriber.*]] merge tag; the unauthenticated attacker first POSTs the entity-encoded payload to the public manage_preferences form (which issues its own nonce on the same page), then pivots execution by embedding their confirm_key in a campaign preview URL sent to a privileged user via social engineering.\nhttps://www.cve.org/CVERecord?id=CVE-2026-103482https://www.wordfence.com/threat-intel/vulnerabilities/id/e5f8afa3-f20c-4dfb-bcc6-2682f68723ca?source=cvehttps://plugins.trac.wordpress.org/browser/newsletter-optin-box/tags/4.3.10/build/Emails/Preview.php#L161https://plugins.trac.wordpress.org/browser/newsletter-optin-box/tags/4.3.10/build/Emails/Generate/Generator.php#L548https://plugins.trac.wordpress.org/browser/newsletter-optin-box/tags/4.3.10/build/Core/Dynamic_Content_Tags.php#L507https://plugins.trac.wordpress.org/browser/newsletter-optin-box/tags/4.3.10/build/Core/Dynamic_Content_Tags.php#L361https://plugins.trac.wordpress.org/browser/newsletter-optin-box/tags/4.3.10/build/Core/Dynamic_Content_Tags.php#L695https://plugins.trac.wordpress.org/browser/newsletter-optin-box/tags/4.3.10/build/Subscribers/functions.php#L937https://plugins.trac.wordpress.org/browser/newsletter-optin-box/tags/4.3.10/build/Subscribers/Manage_Preferences.php#L255https://plugins.trac.wordpress.org/browser/newsletter-optin-box/tags/4.3.10/vendor/hizzle/store/src/Prop.php#L626https://github.com/hizzle-co/noptin/compare/4.3.10...4.4.0#wordpress #picocodes #Noptin\u2013Newsletter,NewPostNotifications&EmailAutomation#CVE_2026_103482#bot", "creation_timestamp": "2026-10-10T05:38:24.407241Z"} https://vulnerability.circl.lu/sighting/681de859-9403-49f9-8902-ddba3761ae0c/export Sat, 10 Oct 2026 05:38:24 +0000