YS LeadGen – Popups, Opt-ins & Lead Capture <= 2.1.4 - Unauthenticated Information Disclosure in 'ysleadgen_get_captured_data' AJAX Action
Strategic Overview
- Status
- Patched in 2.1.5
- Affected Version
<= 2.1.4- CVSS
- 7.5High
- Weakness type
- CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor
- CVE
CVE-2026-1255
At a glance
CVE-2026-1255 is a high-severity Exposure of Sensitive Information to an Unauthorized Actor vulnerability in the YS LeadGen WordPress plugin, affecting versions <= 2.1.4. It carries a CVSS score of 7.5 (reachable over the network; low attack complexity; high confidentiality impact). Exploitation requires no authentication. The issue is fixed in version 2.1.5; sites on affected versions should update now. Disclosed September 2026, reported by Athiwat Tiprasaharn (Jitlada).
Vulnerability Overview
The YS LeadGen plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 2.1.4 due to the 'ysleadgen_get_captured_data' AJAX action being accessible to unauthenticated users. This makes it possible for unauthenticated attackers to retrieve all captured form submission data, including personally identifiable information (PII) such as names, email addresses, and message content submitted through YS LeadGen forms.
Technical Analysis
The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user. A successful exploit has high impact on confidentiality.
CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
YS LeadGen <= 2.1.4 carries this weakness at ysleadgen_get_captured_data, and reaching it takes no account at all. Sensitive information exposure means data the application intended to keep internal is returned to a caller who should not be able to see it.
The disclosed data — credentials, tokens, customer records or internal paths — is usually worth more as material for a follow-up attack than as an end in itself. For YS LeadGen the fix is 2.1.5: builds <= 2.1.4 are affected, anything from 2.1.5 onward is not.
Remediation
Update to version 2.1.5, or a newer patched version
How does WordSec protect against this?
This one needs no account at all, which puts it outside what login hardening can reach; WordSec's login security narrows the account-level paths around it, and the firewall is what inspects the request itself. None of that substitutes for the fix: YS LeadGen 2.1.5 closes this, and updating the plugin is the step that ends it.
- Login Security
- Alerts
External References
Related records
Other vulnerabilities in YS LeadGen – Popup Builder, Popup Maker & Form Builder for WordPress | Lead Generation, Email Marketing, Sales, Conversions, Opt-Ins & Subscribers
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