PatchSiren cyber security CVE debrief
CVE-2026-1255 ysinnovations CVE debrief
The YS LeadGen plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 2.1.4. 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.
- Vendor
- ysinnovations
- Product
- YS LeadGen – Popup Builder, Popup Maker & Form Builder for WordPress | Lead Generation, Email Marketing, Sales, Conversions, Opt-Ins & Subscribers
- CVSS
- HIGH 7.5
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-09-19
- Original CVE updated
- 2026-09-21
- Advisory published
- 2026-09-19
- Advisory updated
- 2026-09-21
Who should care
Defenders responsible for WordPress installations with the YS LeadGen plugin should assess exposure and prioritize remediation. This includes verifying YS LeadGen plugin versions in use, restricting access to the vulnerable AJAX action, and monitoring for unauthorized access to captured form submission data. Additionally, defenders should review compensating controls for exposed systems while remediation is scheduled and verified, and track exceptions, re
Why it matters
The YS LeadGen plugin for WordPress has a Sensitive Information Exposure vulnerability, allowing unauthenticated attackers to retrieve captured form submission data, including PII. Defenders should prioritize verifying exposure and restricting access to the vulnerable AJAX action.
- Unauthenticated access to sensitive form submission data
- Potential exposure of personally identifiable information (PII)
- Need for verification of YS LeadGen plugin versions in use
- Prioritization of restricting access to the 'ysleadgen_get_captured_data' AJAX action
Technical summary
The YS LeadGen plugin for WordPress has a Sensitive Information Exposure vulnerability in all versions up to, and including, 2.1.4. The 'ysleadgen_get_captured_data' AJAX action is accessible to unauthenticated users, allowing them to retrieve all captured form submission data, including personally identifiable information (PII). Defenders should prioritize verifying exposure of YS LeadGen plugin versions up to 2.1.4 and restrict access to the 'ysleadgen_get_captured_data' AJAX action. This vulnerability 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
Defensive priority
Defenders should prioritize verifying exposure of YS LeadGen plugin versions up to 2.1.4 and restrict access to the 'ysleadgen_get_captured_data' AJAX action.
Recommended defensive actions
- Verify YS LeadGen plugin versions up to 2.1.4 are not in use
- Restrict access to the 'ysleadgen_get_captured_data' AJAX action
- Monitor for unauthorized access to captured form submission data
- Review compensating controls for exposed systems while remediation is scheduled and verified
- Check relevant monitoring, detection, and logs for exposed assets that need extra review
- Track exceptions, retest remediated assets, and close the item only after evidence is documented
- Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
Evidence notes
The CVE record and NVD entry provide details on the vulnerability in the YS LeadGen plugin for WordPress. The 'ysleadgen_get_captured_data' AJAX action is accessible to unauthenticated users, allowing them to retrieve captured form submission data.
Sources and references
Verified primary and authoritative sources
-
CVE-2026-1255 CVE Program record
Publisher, destination, and source semantics verified
URL: https://www.cve.org/CVERecord?id=CVE-2026-1255
CVE Program - Official CVE Program record with source-provided CVE metadata.
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CVE-2026-1255 NVD vulnerability detail
Publisher, destination, and source semantics verified
URL: https://nvd.nist.gov/vuln/detail/CVE-2026-1255
NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.
Supplemental references
-
Source reference
Unverified legacy reference
URL: https://plugins.trac.wordpress.org/browser/ysleadgen/tags/1.1.1/app/Controllers/Ajax.php
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Source reference
Unverified legacy reference
URL: https://plugins.trac.wordpress.org/changeset/3577391
Methodology and review provenance
AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.