CVE-2023-0874

PoC —

CVSS 3.1

4.8 medium

EPSS

<1%p37

Published

Apr 10, 2023 (Apr 10, 2023)

Modified

Jun 17, 2026

Description

The Klaviyo WordPress plugin before 3.0.10 does not sanitize and escape some of its settings, which could allow high-privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup).

Vendors: klaviyo
Products: klavio
Ecosystems: WordPress
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

NVD CVE.org GitHub PoCs EPSS (0.4%)

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