{"id":"CVE-2026-15797","aliases":["EUVD-2026-82854","GHSA-m455-q9mx-cr49"],"status":"published","title":"Popup Maker \u003c= 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.","severity":{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.0045,"percentile":0.39374,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2026-09-18T09:28:01Z","modified":"2026-09-19T15:16:58Z","products":[{"vendor":"danieliser","product":"popup maker – boost sales, conversions, optins, subscribers with the ultimate wp popup builder"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/973b23c6-4edd-4f89-b5cf-68e83cfdb8ac?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.23.0/classes/Admin/Ajax.php#L163"},{"url":"https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.23.0/dist/assets/admin-general.js#L1"},{"url":"https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.23.0/classes/Admin/Ajax.php#L152"},{"url":"https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.23.0/classes/Helpers.php#L192"},{"url":"https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.22.0/classes/Admin/Ajax.php#L163"},{"url":"https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.22.0/dist/assets/admin-general.js#L1"},{"url":"https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.22.0/classes/Admin/Ajax.php#L152"},{"url":"https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.22.0/classes/Helpers.php#L192"},{"url":"https://plugins.trac.wordpress.org/changeset?reponame=\u0026new=3690634%40popup-maker%2Ftags%2F1.25.0\u0026old=3648112%40popup-maker%2Ftags%2F1.24.0"},{"url":"https://plugins.trac.wordpress.org/changeset/3690634/popup-maker/trunk/classes/Admin/Ajax.php"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-15797"},{"url":"https://github.com/advisories/GHSA-m455-q9mx-cr49"}],"sources":{"cve":[{"id":"CVE-2026-15797","title":"Popup Maker \u003c= 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.","status":"published","published":"2026-09-18T09:28:01.002Z","modified":"2026-09-19T14:21:50.937Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T13:47:51.033687Z"}],"euvd":[{"id":"EUVD-2026-82854","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.","status":"published","published":"2026-09-18T09:28:01Z","modified":"2026-09-19T14:21:50Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T17:28:06.225065Z"}],"ghsa":[{"id":"GHSA-m455-q9mx-cr49","title":"The Popup Maker – Boost Sales, Conversions, Optins, Subscribers with the Ultimate WP Popup...","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.","status":"published","published":"2026-09-18T12:31:17Z","modified":"2026-09-18T12:31:21Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:12:09.483713Z"}],"nvd":[{"id":"CVE-2026-15797","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.","status":"published","published":"2026-09-18T10:17:06.133Z","modified":"2026-09-19T15:16:58.477Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:12:49.70655Z"}]}}