{"cve":"CVE-2026-1256","nvd":{"published":"2026-09-19T09:16:34.163","modified":"2026-09-21T13:33:33.387","status":"Deferred","description":"The YS LeadGen plugin for WordPress is vulnerable to authorization bypass and Stored Cross-Site Scripting via multiple AJAX endpoints in all versions up to, and including, 2.1.4 due to missing capability checks on popup management actions. This makes it possible for authenticated attackers, with Subscriber-level access and above, to create arbitrary popups and inject malicious JavaScript that executes when the popup is displayed, leading to Stored XSS.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","score":6.4},"cwes":["CWE-79"],"references":["https://plugins.trac.wordpress.org/browser/ysleadgen/tags/1.1.1/app/Controllers/Ajax.php#L36","https://plugins.trac.wordpress.org/browser/ysleadgen/tags/1.1.1/app/Controllers/Ajax.php#L37","https://plugins.trac.wordpress.org/browser/ysleadgen/tags/1.1.1/app/Controllers/Ajax.php#L38","https://plugins.trac.wordpress.org/changeset/3577391","https://www.wordfence.com/threat-intel/vulnerabilities/id/b62b8619-4348-4cf7-a572-aa6df20bdc3a?source=cve"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:55:23.253742848+00:00"},"epss":{"cve":"CVE-2026-1256","score":0.0035,"percentile":0.28659,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}