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CVE-2026-3657

My Sticky Bar <= 2.8.6 - Unauthenticated SQL Injection via 'stickymenu_contact_lead_form' Action

7.5 High

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.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
None
Availability
None

Exploit likelihood

0.35%Up 0.3 points since Mar 12, 2026
90%50%10%1%

What each source reports

CVE List Score used 7.5

My Sticky Bar <= 2.8.6 - Unauthenticated SQL Injection via 'stickymenu_contact_lead_form' Action

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.

Record
CVE-2026-3657
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness
CWE-89
Updated
2026-11-02
EUVDEUVD-2026-11511 7.5

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.

Record
EUVD-2026-11511
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-pvwh-rjjc-mwgp 7.5

The My Sticky Bar plugin for WordPress is vulnerable to SQL injection via the ...

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.

Record
GHSA-pvwh-rjjc-mwgp
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness
CWE-89
Updated
2026-11-02
NVD 7.5

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.

Record
CVE-2026-3657
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness
CWE-89
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-3657 is a high vulnerability (CVSS 7.5) in Premio My Sticky Bar – Floating Notification Bar & Sticky Header (formerly Mystickymenu), published March 12, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.35%, the 28th percentile. No source names a fixed version.

References

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