Shield Security <= 17.0.17 — Missing Authorization
CVE-2023-0993Published · Updated Action summary
Affected: <17.0.18Update to 17.0.18 or newer
All remediation steps- Severity
- Medium4.3
- CVSS
- 4.3CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:NWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:LPrivileges required- Low
UI:NUser interaction- None
S:UScope- Unchanged
C:NConfidentiality- None
I:LIntegrity- Low
A:NAvailability- None
- Weakness
- CWE-862 Missing Authorization
- Required access
- Unknown
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
Shield Security – Smart Bot Blocking, Brute-Force Login Protection & File Scanning wp-simple-firewall
- Affected< 17.0.18
- Patched in17.0.18
Update to 17.0.18 or newer.
You are affected if you run < 17.0.18. Version 17.0.18 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Shield Security – Smart Bot Blocking, Brute-Force Login Protection & File Scanning.
- No admin access? Run a passive check of your site. It reads public files only.
What to do
- Update to version 17.0.18, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Shield Security – Smart Bot Blocking, Brute-Force Login Protection & File Scanning to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Ram.
The Shield Security plugin for WordPress is vulnerable to Missing Authorization on the 'theme-plugin-file' AJAX action in versions up to, and including, 17.0.17. This allows authenticated attackers to add arbitrary audit log entries indicating that a theme or plugin has been edited, and is also a vector for Cross-Site Scripting via CVE-2023-0992.
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 Shield Security – Smart Bot Blocking, Brute-Force Login Protection & File Scanning
All 12| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High7.2 | Unauthenticated Stored Cross-Site Scripting via Request Path (REQUEST_URI) in Traffic Log ≤22.3.2Update to 22.3.4 | CVE-2026-118057 | |
| Medium6.5 | Cross-Site Request Forgery to SQL Injection ≤21.0.8Update to 21.0.10 | CVE-2026-0722 | |
| Medium6.1 | Unauthenticated Reflected Cross-Site Scripting via 'message' Parameter ≤21.0.8Update to 21.0.10 | CVE-2026-0561 | |
| Medium4.3 | Missing Authorization to Authenticated (Subscriber+) Email MFA Update ≤21.0.9Update to 21.0.10 | CVE-2025-14427 | |
| Medium4.3 | Authenticated (Subscriber+) Insecure Direct Object Reference to Disable Google Authenticator ≤21.0.9Update to 21.0.10 | CVE-2025-15370 |
- High7.2Unauthenticated Stored Cross-Site Scripting via Request Path (REQUEST_URI) in Traffic Log
≤22.3.2Update to 22.3.4
- Medium6.5Cross-Site Request Forgery to SQL Injection
≤21.0.8Update to 21.0.10
- Medium6.1Unauthenticated Reflected Cross-Site Scripting via 'message' Parameter
≤21.0.8Update to 21.0.10
- Medium4.3Missing Authorization to Authenticated (Subscriber+) Email MFA Update
≤21.0.9Update to 21.0.10
- Medium4.3Authenticated (Subscriber+) Insecure Direct Object Reference to Disable Google Authenticator
≤21.0.9Update to 21.0.10
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 4.3
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.