CVE-2026-12560

Deferred Deferred - Pending Action

Stored XSS in Editorial Rating – Product Review & Rating System WordPress Plugin

Publication date: 2026-06-30

Last updated on: 2026-07-01

Assigner: Wordfence

Description

The Editorial Rating – Product Review & Rating System plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'Link URL' Field in all versions up to, and including, 4.0.5 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The WordPress unfiltered_html capability exemption does not apply here because the payload is stored in post meta (_wpas_er_options via update_post_meta) rather than in post_content or post_excerpt, meaning the restriction affects all administrators regardless of their unfiltered_html status.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-06-30

Last Modified

2026-07-01

Generated

2026-07-20

AI Q&A

2026-06-30

EPSS Evaluated

2026-07-19

NVD

CVE-2026-12560

EUVD

EUVD-2026-40251

Affected Vendors & Products

Vendor	Product	Version / Range
editorial_rating	product_review_rating_system	to 4.0.5 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-79	The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Attack-Flow Graph

Executive Summary

The Editorial Rating – Product Review & Rating System plugin for WordPress is vulnerable to Stored Cross-Site Scripting (XSS) via the 'Link URL' field in all versions up to and including 4.0.5.

This vulnerability occurs because the plugin does not properly sanitize input or escape output, allowing authenticated users with administrator-level access or higher to inject malicious web scripts.

These injected scripts are stored in the post meta data and execute whenever a user accesses the affected page.

Notably, the usual WordPress unfiltered_html capability exemption does not apply here, meaning all administrators are affected regardless of their unfiltered_html status.

Impact Analysis

This vulnerability allows an attacker with administrator-level access to inject arbitrary scripts that execute in the context of users visiting the affected pages.

Such scripts can be used to steal sensitive information, hijack user sessions, perform actions on behalf of users, or spread malware.

Because the attack requires high privileges (administrator-level access), the risk is somewhat mitigated, but it still poses a significant threat to site integrity and user security.

Compliance Impact

The vulnerability allows authenticated administrators to inject arbitrary web scripts via stored cross-site scripting (XSS) in the WordPress plugin. This could lead to unauthorized access or manipulation of data.

Such unauthorized access or data manipulation could potentially impact compliance with standards and regulations like GDPR or HIPAA, which require protection of personal and sensitive data from unauthorized access or breaches.

However, the provided information does not explicitly describe the direct effects on compliance with these standards.

Mitigation Strategies

To mitigate this vulnerability, you should update the Editorial Rating – Product Review & Rating System plugin for WordPress to a version later than 4.0.5 where the issue is fixed.

Additionally, restrict administrator-level access to trusted users only, since the vulnerability requires authenticated attackers with administrator privileges.

Monitor and sanitize any input fields related to 'Link URL' in the plugin to prevent injection of malicious scripts.

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