What’s Vulnerable › Vulnerabilities

CVE-2018-20853

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-11-06 · updated 2026-06-17

Description

An issue was discovered in the MailPoet Newsletters (aka wysija-newsletters) plugin before 2.8.2 for WordPress. The plugin is vulnerable to SPAM attacks.

Affected products

• Mailpoet Newsletters: before 2.8.2 — fixed in 2.8.2

How to fix

Upgrade to a fixed version: Mailpoet Newsletters 2.8.2. Check the vendor advisory for mitigations.

References

• https://wordpress.org/plugins/wysija-newsletters/#developers
• https://wordpress.org/plugins/wysija-newsletters/#developers

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