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OpenAdvisories
Medium · 5.8 CVE-2026-115225 EUVD-2026-111730GHSA-4r9j-p4gw-x3hm

Smart Popup by Supsystic < 2.0.2 - Unauthenticated SSRF via MailChimp Groups Lookup

Published Oct 28, 2026 · Updated Oct 28, 2026 · Assigned by WPScan

Description

The Customer Engagement System WordPress plugin before 2.0.2 does not restrict access to its MailChimp interest-group lookup or validate the API key supplied to it, allowing unauthenticated users to make the server open connections to arbitrary internal hosts and ports and infer from response timing which ones are reachable.

Affected products

VendorProductAffectedFixed
— Customer Engagement System < 2.0.2 2.0.2

References