CVE-2026-54863
Deferred Deferred - Pending Action

Reflected Cross-Site Scripting in Review Schema Plugin

Vulnerability report for CVE-2026-54863, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-11-09

Last updated on: 2026-11-09

Assigner: Patchstack

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Mamunur Rashid Review Schema review-schema allows Reflected XSS.This issue affects Review Schema: from n/a through 3.1.4.

CVSS Scores

EPSS Scores

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Meta Information

Published
2026-11-09
Last Modified
2026-11-09
Generated
2026-11-09
AI Q&A
2026-11-09
EPSS Evaluated
N/A
NVD
EUVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
mamunur_rashid review_schema to 3.1.4 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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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

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Executive Summary

This is a Cross-site Scripting (XSS) vulnerability in the WordPress Review Schema Plugin affecting versions 3.1.4 and earlier. It allows attackers to inject malicious scripts into web pages by exploiting improper input neutralization during page generation. The vulnerability is triggered when a privileged user interacts with a crafted link, page, or form containing malicious input.

Detection Guidance

Detecting this vulnerability requires checking if the Review Schema plugin version 3.1.4 or earlier is installed. Inspect WordPress installations for the plugin and verify its version. Look for unusual user interactions or script injections in web traffic logs.

Impact Analysis

Attackers could steal visitor data, hijack user accounts, or perform unauthorized actions on behalf of users. Since it requires interaction from a privileged user, the risk is higher if such users are targeted. The impact includes potential data breaches, loss of user trust, and compromised website integrity.

Compliance Impact

This vulnerability could lead to unauthorized access to personal data, violating GDPR and HIPAA requirements for data protection. Organizations may face fines, legal penalties, and reputational damage if exploited. Compliance with these regulations requires addressing such vulnerabilities promptly.

Mitigation Strategies

Immediately update the Review Schema plugin to version 3.1.5 or later. If updating is not possible, apply the mitigation rule provided by Patchstack to block attacks until the update is completed.

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