CVE-2026-116559
Received Received - Intake

Unauthenticated API Access in A2Reviews WordPress Plugin

Publication date: 2026-11-15

Last updated on: 2026-11-15

Assigner: WPScan

Description
The A2Reviews WordPress plugin through 1.2.3 does not properly verify authorization on several of its API command handlers, relying on a signature keyed on a value that is empty by default on an unconnected install, allowing unauthenticated attackers to modify A2Reviews WordPress plugin through 1.2.3 settings and product review metadata and to read non-public product metadata.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-11-15
Last Modified
2026-11-15
Generated
2026-11-15
AI Q&A
2026-11-15
EPSS Evaluated
N/A
NVD
CVE-2026-116559
EUVD
EUVD-2026-125977

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
Unknown A2Reviews From 0 (inc) to 1.2.3 (inc)

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-UNKNOWN

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

The A2Reviews WordPress plugin up to version 1.2.3 has a flaw in its API command handlers where authorization checks are not properly implemented. The plugin relies on a signature that defaults to an empty value on fresh installations, allowing unauthenticated attackers to modify plugin settings and product review data without needing to log in.

Detection Guidance

Check if the A2Reviews WordPress plugin version 1.2.3 or below is installed. Inspect plugin files for API handlers lacking proper authorization checks. Look for empty or default signature values in API requests.

Impact Analysis

Attackers could change your plugin settings, alter product reviews, or access non-public product information. This could damage your site's integrity, mislead customers, or expose sensitive data if you store product details privately.

Compliance Impact

This vulnerability could potentially lead to non-compliance with GDPR or HIPAA if it results in unauthorized access to or modification of personal data stored in product reviews or metadata. Unauthenticated attackers could read non-public product metadata, which may include sensitive information, violating data protection requirements.

Mitigation Strategies

Update the A2Reviews plugin to the latest version if available. If no update exists, consider disabling the plugin temporarily. Review and restrict API endpoints to prevent unauthorized access.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-116559. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart

Security Radar

News mentioning this vulnerability
Loading related security news...