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CVE-2023-28421: WordPress WordPress Email Marketing Plugin – WP Email Capture Plugin <= 3.10 is vulnerable to Sensitive Data Exposure

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-12-21 · updated 2026-06-17
• Weakness: CWE-200

Description

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Winwar Media WordPress Email Marketing Plugin – WP Email Capture.This issue affects WordPress Email Marketing Plugin – WP Email Capture: from n/a through 3.10.

Affected products

• Winwar Media WP Email Capture: before 3.11 — fixed in 3.11

How to fix

Upgrade to a fixed version: Winwar Media WP Email Capture 3.11. Check the vendor advisory for mitigations.

References

• https://patchstack.com/database/vulnerability/wp-email-capture/wordpress-wp-email-capture-plugin-3-10-sensitive-data-exposure-vulnerability?_s_id=cve
• https://patchstack.com/database/vulnerability/wp-email-capture/wordpress-wp-email-capture-plugin-3-10-sensitive-data-exposure-vulnerability?_s_id=cve

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