CVE-2026-1256

YS LeadGen – Popups, Opt-ins & Lead Capture <= 2.1.4 - Missing Authorization to Authenticated (Subscriber+) Stored Cross-Site Scripting via User Input

Published Sep 19, 2026 CVSS 3.1 · 6.4 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Wordpress
Wordpress wordpress
Ysinnovations
Ysinnovations ys Leadgen – Popup Builder, Popup Maker & Form Builder For Wordpress | Lead Generation, Email Marketing, Sales, Conversions, Opt-ins & Subscribers
Vendors & Products Wordpress
Wordpress wordpress
Ysinnovations
Ysinnovations ys Leadgen – Popup Builder, Popup Maker & Form Builder For Wordpress | Lead Generation, Email Marketing, Sales, Conversions, Opt-ins & Subscribers
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title YS LeadGen – Popups, Opt-ins & Lead Capture <= 2.1.4 - Missing Authorization to Authenticated (Subscriber+) Stored Cross-Site Scripting via User Input
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 6.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Wordfence
Published
Updated
Sep 19, 2026, 1:51 PM
Reserved
Jan 20, 2026, 7:48 PM
Status
Deferred
Published
Sep 19, 2026, 9:16 AM
Modified
Sep 21, 2026, 1:33 PM