What’s Vulnerable › Vulnerabilities

CVE-2026-27536: WordPress MailChimp Subscribe Forms plugin <= 4.3.3 - Cross Site Scripting (XSS) vulnerability

• Severity: high (CVSS 7.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-13 · updated 2026-10-23
• Weakness: CWE-79

Description

Unauthenticated Cross Site Scripting (XSS) in MailChimp Subscribe Forms <= 4.3.3 versions.

Affected products

• PluginOps MailChimp Subscribe Forms: through 4.3.3

References

• https://patchstack.com/database/wordpress/plugin/mailchimp-subscribe-sm/vulnerability/wordpress-mailchimp-subscribe-forms-plugin-4-3-3-cross-site-scripting-xss-vulnerability?_s_id=cve

Get alerted when CVE-2026-27536 or the next vulnerability affects your stack