myStickymenu <= 2.6.4 — Missing Authorization to Authenticated (Subscriber+) Arbitrary Form Lead Deletion
CVE-2023-5509Published · Updated Action summary
Affected: ≤2.6.4Update to 2.6.5 or newer
All remediation steps- Severity
- Medium6.3
- CVSS
- 6.3CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:LWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:LPrivileges required- Low
UI:NUser interaction- None
S:UScope- Unchanged
C:LConfidentiality- Low
I:LIntegrity- Low
A:LAvailability- Low
- Weakness
- CWE-862 Missing Authorization
- Required access
- Unknown
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
My Sticky Bar – Floating Notification Bar & Sticky Header (formerly myStickymenu) mystickymenu
- Affected≤ 2.6.4
- Patched in2.6.5
Update to 2.6.5 or newer.
You are affected if you run ≤ 2.6.4. Version 2.6.5 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under My Sticky Bar – Floating Notification Bar & Sticky Header (formerly myStickymenu).
- No admin access? Run a passive check of your site. It reads public files only.
What to do
- Update to version 2.6.5, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch My Sticky Bar – Floating Notification Bar & Sticky Header (formerly myStickymenu) to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Krzysztof Zając.
The Floating Notification Bar, Sticky Menu on Scroll, Announcement Banner, and Sticky Header for Any Theme – My Sticky Bar (formerly myStickymenu) plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the my_sticky_menu_bulks() function in all versions up to, and including, 2.6.4. This makes it possible for authenticated attackers, with subscruber-level access and above, to delete arbitrary form leads. There were several additional AJAX actions in the plugin with missing capability checks as well such as mystickymenu_admin_send_message_to_owner(), stickymenu_widget_delete(), mystickymenu_widget_status() and more that make is possible for authenticated attackers to perform unauthorized actions.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in My Sticky Bar – Floating Notification Bar & Sticky Header (formerly myStickymenu)
All 6| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High7.5 | Unauthenticated SQL Injection via 'stickymenu_contact_lead_form' Action ≤2.8.6Update to 2.8.7 | CVE-2026-3657 | |
| Medium4.4 | Authenticated (Admin+) Stored Cross-Site Scripting ≤2.7.2Update to 2.7.3 | CVE-2024-7133 | |
| Medium4.4 | Authenticated (Admin+) Stored Cross-Site Scripting ≤2.7.1Update to 2.7.2 | CVE-2024-4090 | |
| Low3.1 | Cross-Site Request Forgery to Sensitive Information Exposure ≤2.6.6Update to 2.6.7 | CVE-2023-7048 | |
| Medium4.8 | Authenticated Stored Cross-Site Scripting <2.5.2Update to 2.5.2 | CVE-2021-24425 |
- High7.5Unauthenticated SQL Injection via 'stickymenu_contact_lead_form' Action
≤2.8.6Update to 2.8.7
- Medium4.4Authenticated (Admin+) Stored Cross-Site Scripting
≤2.7.2Update to 2.7.3
- Medium4.4Authenticated (Admin+) Stored Cross-Site Scripting
≤2.7.1Update to 2.7.2
- Low3.1Cross-Site Request Forgery to Sensitive Information Exposure
≤2.6.6Update to 2.6.7
- Medium4.8Authenticated Stored Cross-Site Scripting
<2.5.2Update to 2.5.2
Same weakness (Missing Authorization)
All Missing Authorization| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High7.2 | Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header | CVE-2026-120688 | |
| Critical9.8 | Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission | CVE-2026-125055 | |
| Critical9.8 | Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter | CVE-2026-119077 | |
| Medium5.3 | Unauthenticated Sensitive Information Exposure in 'search' Parameter | CVE-2026-121518 |
- High7.2Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header
EZ SQL Reports Shortcode Widget and DB Backup
≤5.25.25Update to 5.26.45
- Critical9.8Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission
Chatterbug Forms – Fast, Flexible WordPress Form Builder
≤1.0.2Update to 1.1
- Critical9.8Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter
ELEX WordPress HelpDesk & Customer Ticketing System
≤3.3.9Update to 3.4.0
- Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
Customer Reviews for WooCommerce
≤5.127.0Update to 5.128.0
Timeline
CVE published
Severity medium, CVSS 6.3
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- Copyright 1999-2026 The MITRE Corporation. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.