CVE-2026-100148

Overview

The Rich Showcase for Google Reviews WordPress plugin (v≤7.1.3) contains a stored XSS flaw in the reviews[].text field. Authenticated users with subscriber-level access can inject scripts that run on every visitor’s browser when the plugin auto‑imports reviews. This allows attackers to deface sites or steal credentials without further interaction.

Description

The Rich Showcase for Google Reviews plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'reviews[].text' parameter in all versions up to, and including, 7.1.3 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The payload is delivered entirely through a Google review posted for the connected business and requires no WordPress account; the plugin's default daily cron auto-imports the malicious review text, and execution triggers for every visitor on DOMContentLoaded without any further user interaction.

Impact

Confidentiality: attackers can steal session cookies or other sensitive data from visitors. Integrity: malicious scripts can modify page content or redirect users. Availability: repeated script execution may degrade performance. Defenders: site owners, WordPress admins, security teams.

Remediation

Update the Rich Showcase plugin to the latest version (≥7.1.4) or apply the vendor patch. If update is not possible, disable the auto‑import cron job or remove the plugin. Additionally, enforce least‑privilege by restricting subscriber roles from editing plugin settings and monitor review content for suspicious scripts.

Risk context

Medium severity (CVSS 6.4). No EPSS data available. The flaw is exploitable by authenticated users, so the risk is moderate but should be addressed promptly to prevent cross‑site attacks.

Affected products

• WordPress
• Rich Showcase for Google Reviews