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CVE-2022-36340: WordPress MailOptin plugin <= 1.2.49.0 - Unauthenticated Optin Campaign Cache Deletion vulnerability

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-09-23 · updated 2026-06-17
• Weakness: CWE-862

Description

Unauthenticated Optin Campaign Cache Deletion vulnerability in MailOptin plugin <= 1.2.49.0 at WordPress.

Affected products

• properfraction MailOptin – Popup, Optin Forms & Email Newsletters for Mailchimp, HubSpot, AWeber Etc.: through 1.2.49.0

References

• https://patchstack.com/database/vulnerability/mailoptin/wordpress-mailoptin-plugin-1-2-49-0-unauthenticated-optin-campaign-cache-deletion-vulnerability/_s_id=cve
• https://plugins.svn.wordpress.org/mailoptin/trunk/changelog.txt
• https://patchstack.com/database/vulnerability/mailoptin/wordpress-mailoptin-plugin-1-2-49-0-unauthenticated-optin-campaign-cache-deletion-vulnerability/_s_id=cve
• https://plugins.svn.wordpress.org/mailoptin/trunk/changelog.txt

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