CVE-2026-88905

Deferred Deferred - Pending Action

Cross-Site Scripting in KeyWord Collector WordPress Plugin

Publication date: 2026-10-11

Last updated on: 2026-10-13

Assigner: WPScan

Description

The KeyWord Collector WordPress plugin through 1.4 does not have any authorisation or nonce check when saving its settings, and does not escape them before output, allowing unauthenticated attackers to store malicious JavaScript that executes when an administrator opens the KeyWord Collector WordPress plugin through 1.4's settings page or when a visitor loads a page displaying its output.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-10-11

Last Modified

2026-10-13

Generated

2026-10-19

AI Q&A

2026-10-11

EPSS Evaluated

2026-10-18

NVD

CVE-2026-88905

EUVD

EUVD-2026-96777

Affected Vendors & Products

Vendor	Product	Version / Range
Unknown	KeyWord	Collector 0

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

This is an unauthenticated stored cross-site scripting (XSS) vulnerability in the KeyWord Collector WordPress plugin version 1.4 or earlier. It allows attackers to inject malicious JavaScript without authentication by exploiting missing authorization checks and nonce validation when saving settings. The injected script executes when an administrator views the plugin's settings or when visitors load pages displaying its output.

Detection Guidance

Check if the KeyWord Collector WordPress plugin version 1.4 or earlier is installed. Inspect the plugin's settings page for unauthorized JavaScript code in saved inputs. Review server logs for unusual activity related to the plugin.

Impact Analysis

Unauthenticated attackers can store malicious JavaScript that executes in the context of administrators or visitors. This could lead to theft of session cookies, account takeover, defacement of the website, or delivery of malware to users. The impact includes compromised user data and potential loss of control over the WordPress site.

Compliance Impact

This vulnerability could lead to unauthorized access to user data, violating GDPR's data protection principles and HIPAA's security requirements for protected health information. It may result in data breaches, unauthorized data exposure, and failure to maintain confidentiality and integrity of sensitive data.

Mitigation Strategies

Update the KeyWord Collector plugin to the latest version. Remove or disable the plugin if no update is available. Implement input validation and output escaping for plugin settings. Monitor for unauthorized changes to plugin settings.

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