CVE-2026-118422 Stape Conversion Tracking 2.3.0 - 2.3.10 - Unauthenticated SSRF and Same-Origin XSS via Proxy Sub-Path

Description

The Stape Conversion Tracking WordPress plugin before 2.3.11 does not validate the sub-path appended to its same-origin proxy's upstream endpoint, allowing unauthenticated visitors to redirect the server-side request to an arbitrary host and have the response body and its content type returned from the site's own origin with security response headers stripped, leading to Server-Side Request Forgery, including loopback and internal hosts, and Cross-Site Scripting.

Exploitable remotely over the network, without an account and if a user takes an action; the impact on data or service is limited.

Attack vector

Network

Attack complexity

Low

Privileges required

None

Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

Low

Affected products and versions