{"id":"CVE-2026-18404","aliases":["EUVD-2026-71843","GHSA-3j54-vf3c-f8mg"],"status":"published","title":"Social Chat \u003c= 8.6.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'consent_message' JSON Attribute in .qlwapp data-box","description":"The Social Chat – Click To Chat App Button plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'consent_message' JSON Attribute in .qlwapp data-box in all versions up to, and including, 8.6.2 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. The exploit requires no user interaction beyond page load, as setting auto_open and consent_enabled to 'yes' in the injected data-box JSON causes the consent box — and the embedded script — to execute immediately on page load.","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":"2026-11-11","score":0.00349,"percentile":0.28903,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2026-09-05T05:30:56Z","modified":"2026-09-08T13:12:58Z","products":[{"vendor":"quadlayers","product":"social chat – click to chat app button"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/f159392b-5bc6-4c12-a924-13ea170bb7fa?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/wp-whatsapp-chat/tags/8.6.1/build/frontend/js/index.js#L2"},{"url":"https://plugins.trac.wordpress.org/browser/wp-whatsapp-chat/tags/8.6.1/lib/controllers/class-frontend.php#L86"},{"url":"https://plugins.trac.wordpress.org/browser/wp-whatsapp-chat/tags/8.5.1/build/frontend/js/index.js#L2"},{"url":"https://plugins.trac.wordpress.org/browser/wp-whatsapp-chat/tags/8.5.1/lib/controllers/class-frontend.php#L86"},{"url":"https://plugins.trac.wordpress.org/changeset?reponame=\u0026new=3667778%40wp-whatsapp-chat%2Ftags%2F8.6.3\u0026old=3664149%40wp-whatsapp-chat%2Ftags%2F8.6.2"},{"url":"https://plugins.trac.wordpress.org/changeset?old_path=%2Fwp-whatsapp-chat/tags/8.6.2\u0026new_path=%2Fwp-whatsapp-chat/tags/8.6.3"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-18404"},{"url":"https://github.com/advisories/GHSA-3j54-vf3c-f8mg"}],"sources":{"cve":[{"id":"CVE-2026-18404","title":"Social Chat \u003c= 8.6.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'consent_message' JSON Attribute in .qlwapp data-box","description":"The Social Chat – Click To Chat App Button plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'consent_message' JSON Attribute in .qlwapp data-box in all versions up to, and including, 8.6.2 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. The exploit requires no user interaction beyond page load, as setting auto_open and consent_enabled to 'yes' in the injected data-box JSON causes the consent box — and the embedded script — to execute immediately on page load.","status":"published","published":"2026-09-05T05:30:56.592Z","modified":"2026-09-07T11:17:26.202Z","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":"2026-11-02T14:20:12.260247Z"}],"euvd":[{"id":"EUVD-2026-71843","description":"The Social Chat – Click To Chat App Button plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'consent_message' JSON Attribute in .qlwapp data-box in all versions up to, and including, 8.6.2 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. The exploit requires no user interaction beyond page load, as setting auto_open and consent_enabled to 'yes' in the injected data-box JSON causes the consent box — and the embedded script — to execute immediately on page load.","status":"published","published":"2026-09-05T05:30:56Z","modified":"2026-09-07T11:17:26Z","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":"2026-11-02T17:28:30.668645Z"}],"ghsa":[{"id":"GHSA-3j54-vf3c-f8mg","title":"The Social Chat – Click To Chat App Button plugin for WordPress is vulnerable to Stored Cross...","description":"The Social Chat – Click To Chat App Button plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'consent_message' JSON Attribute in .qlwapp data-box in all versions up to, and including, 8.6.2 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. The exploit requires no user interaction beyond page load, as setting auto_open and consent_enabled to 'yes' in the injected data-box JSON causes the consent box — and the embedded script — to execute immediately on page load.","status":"published","published":"2026-09-05T06:32:38Z","modified":"2026-09-05T06:32:44Z","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":"2026-11-02T15:11:24.326884Z"}],"nvd":[{"id":"CVE-2026-18404","description":"The Social Chat – Click To Chat App Button plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'consent_message' JSON Attribute in .qlwapp data-box in all versions up to, and including, 8.6.2 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. The exploit requires no user interaction beyond page load, as setting auto_open and consent_enabled to 'yes' in the injected data-box JSON causes the consent box — and the embedded script — to execute immediately on page load.","status":"published","published":"2026-09-05T06:17:09.577Z","modified":"2026-09-08T13:12:58.31Z","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":"2026-11-02T14:12:44.082631Z"}]}}