The My Sticky Bar plugin for WordPress is vulnerable to SQL injection via the `stickymenu_contact_lead_form` AJAX action in all versions up to, and including, 2.8.6. This is due to the handler using attacker-controlled POST parameter names directly as SQL column identifiers in `$wpdb->insert()`. While parameter values are sanitized with `esc_sql()` and `sanitize_text_field()`, the parameter keys are used as-is to build the column list in the INSERT statement. This makes it possible for unauthenticated attackers to inject SQL via crafted parameter names, enabling blind time-based data extraction from the database.
CVE-2026-3657 is a high severity with CVSS 7.5 SQL Injection issue affecting the Plugin My Sticky Bar – Floating Notification Bar & Sticky Header (formerly myStickymenu). It affects Versions up to 2.8.6 and is fixed in 2.8.7.
CVE-2026-3657 is tracked for the Plugin My Sticky Bar – Floating Notification Bar & Sticky Header (formerly myStickymenu) as high severity with CVSS 7.5. The affected range is Versions up to 2.8.6. Update My Sticky Bar – Floating Notification Bar & Sticky Header (formerly myStickymenu) to 2.8.7 or newer where that version is compatible with the site.
| Software Type | Plugin |
|---|---|
| Software Slug |
mystickymenu
View on wordpress.org
|
| CVE | CVE-2026-3657 |
| Patched Versions |
2.8.7
|
| Affected Versions |
Versions up to 2.8.6
|
These internal links group the same WordPress plugin by CVE, issue type, severity, and patch status so operators and search engines can connect the full vulnerability cluster.
myStickymenu <= 2.6.4 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Form Lead Deletion
myStickymenu <= 2.5.1 - Authenticated Stored Cross-Site Scripting
My Sticky Bar <= 2.7.2 - Authenticated (Admin+) Stored Cross-Site Scripting
My Sticky Bar (formerly myStickymenu) <= 2.7.1 - Authenticated (Admin+) Stored Cross-Site Scripting
My Sticky Bar <= 2.6.6 - Cross-Site Request Forgery to Sensitive Information Exposure
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