6.1Medium

CVE-2026-89427Ad Inserter <= 2.8.18 - Reflected Cross-Site Scripting via 's' Search Parameter

spacetime Ad Inserter – Ad Manager & AdSense Ads Published: (1 month ago)

Description

The Ad Inserter – Ad Manager & AdSense Ads plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via 's' Search Parameter in all versions up to, and including, 2.8.18 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. Exploitation requires that a site administrator has configured at least one Ad Inserter block using the {title} or {short-title} placeholder with that block enabled for search pages, which is a standard, documented plugin feature.

Weakness (CWE): CWE-79

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

VendorProductVersions
spacetime Ad Inserter – Ad Manager & AdSense Ads ≤ 2.8.18

References and patches