Klaviyo

WordPress plugin · klaviyo · WordPress.org ↗

Latest v3.8.3 Last release Aug 17, 2026 Tested up to WP 7.0.5 100,000+ active installs

Critical

High

Known total

Unfixed

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Severity	Vulnerability	Affected	Fixed in	CVE	Published
MEDIUM CVSS 4.8	Klaviyo [klaviyo] < 3.0.10 WPVulnerability · PoC available	< 3.0.10	v3.0.10	CVE-2023-0874	Mar 20, 2023
MEDIUM CVSS 5.9	Klaviyo [klaviyo] < 3.0.8 WPVulnerability	< 3.0.8	v3.0.8	CVE-2023-25456	Mar 13, 2023

Data aggregated from WPVulnerability, NVD/NIST, ENISA EUVD, CVE.org and WordPress.org. Provided as-is; verify with the plugin author before acting. Disclaimer.