WordPress Email Marketing Plugin – WP Email Capture <= 3.10 — Information Exposure via wp_email_capture_options_process
CVE-2023-28421Published · Updated Action summary
Affected: ≤3.10Update to 3.11 or newer
All remediation steps- Severity
- Medium5.3
- CVSS
- 5.3CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:NPrivileges required- None
UI:NUser interaction- None
S:UScope- Unchanged
C:LConfidentiality- Low
I:NIntegrity- None
A:NAvailability- None
- Weakness
- CWE-200 Information Exposure
- Required access
- No account needed
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
Email Marketing Plugin – WP Email Capture wp-email-capture
- Affected≤ 3.10
- Patched in3.11
Update to 3.11 or newer.
You are affected if you run ≤ 3.10. Version 3.11 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Email Marketing Plugin – WP Email Capture.
- No admin access? Run a passive check of your site. It reads public files only.
- No account is needed to exploit this. Treat any exposed site on an affected version as at risk.
What to do
- Update to version 3.11, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Email Marketing Plugin – WP Email Capture to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Nguyen Anh Tien.
The WordPress Email Marketing Plugin – WP Email Capture plugin for WordPress is vulnerable to Sensitive Information Exposure in versions up to, and including, 3.10 via the wp_email_capture_options_process function hooked via admin_init. This makes it possible for unauthenticated attackers to extract sensitive data including user emails.
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 Email Marketing Plugin – WP Email Capture
All 6| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium4.3 | Cross-Site Request Forgery ≤3.12.5Update to 3.12.6 | CVE-2025-68529 | |
| Medium4.3 | Missing Authorization ≤3.12.4Update to 3.12.5 | CVE-2025-67578 | |
| High8.2 | Missing Authorization to Email Capture List Download ≤3.10Update to 3.11 | — | |
| Medium4.3 | Cross Site Request Forgery ≤3.9.3Update to 3.10 | CVE-2023-23724 | |
| Medium4.4 | Authenticated (Administrator+) Stored Cross-Site Scripting ≤3.9.3Update to 3.10 | CVE-2023-23723 |
- Medium4.3Cross-Site Request Forgery
≤3.12.5Update to 3.12.6
- Medium4.3Missing Authorization
≤3.12.4Update to 3.12.5
- High8.2Missing Authorization to Email Capture List Download
≤3.10Update to 3.11
- Medium4.3Cross Site Request Forgery
≤3.9.3Update to 3.10
- Medium4.4Authenticated (Administrator+) Stored Cross-Site Scripting
≤3.9.3Update to 3.10
Same weakness (Information Exposure)
All Information Exposure| 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 5.3
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.