{"id":"CVE-2026-15797","state":"PUBLISHED","title":"Popup Maker <= 1.24.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via post_title","description":"The Popup Maker – Boost Sales, Conversions, Optins, Subscribers with the Ultimate WP Popup Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via post_title in all versions up to, and including, 1.24.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This requires the attacker to create a post with an HTML entity-encoded payload in the title, which bypasses sanitize_text_field on save and is later decoded and executed by the browser when rendered by the Select2 component.","publishedAt":"2026-09-18T09:28:01.002Z","updatedAt":"2026-09-19T14:21:50.937Z","severity":{"score":6.4,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","source":"Wordfence"},"assigner":"Wordfence","products":["danieliser Popup Maker – Boost Sales, Conversions, Optins, Subscribers with the Ultimate WP Popup Builder"],"affected":[{"vendor":"danieliser","product":"Popup Maker – Boost Sales, Conversions, Optins, Subscribers with the Ultimate WP Popup Builder","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.24.0","versionType":"semver"}]}],"references":["https://www.wordfence.com/threat-intel/vulnerabilities/id/973b23c6-4edd-4f89-b5cf-68e83cfdb8ac?source=cve","https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.23.0/classes/Admin/Ajax.php#L163","https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.23.0/dist/assets/admin-general.js#L1","https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.23.0/classes/Admin/Ajax.php#L152","https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.23.0/classes/Helpers.php#L192","https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.22.0/classes/Admin/Ajax.php#L163","https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.22.0/dist/assets/admin-general.js#L1","https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.22.0/classes/Admin/Ajax.php#L152","https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.22.0/classes/Helpers.php#L192","https://plugins.trac.wordpress.org/changeset?reponame=&new=3690634%40popup-maker%2Ftags%2F1.25.0&old=3648112%40popup-maker%2Ftags%2F1.24.0","https://plugins.trac.wordpress.org/changeset/3690634/popup-maker/trunk/classes/Admin/Ajax.php"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:11:00.674Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/15xxx/CVE-2026-15797.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-15797","state":"PUBLISHED","datePublished":"2026-09-18T09:28:01.002Z","dateUpdated":"2026-09-19T14:21:50.937Z","assignerShortName":"Wordfence","assignerOrgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateReserved":"2026-07-14T20:23:01.788Z"},"containers":{"cna":{"title":"Popup Maker <= 1.24.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via post_title","descriptions":[{"lang":"en","value":"The Popup Maker – Boost Sales, Conversions, Optins, Subscribers with the Ultimate WP Popup Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via post_title in all versions up to, and including, 1.24.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. 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