CVE-2026-81295
Deferred Deferred - Pending Action

Unauthenticated Cross Site Scripting in Under Construction

Publication date: 2026-09-03

Last updated on: 2026-09-03

Assigner: Patchstack

Description
Unauthenticated Cross Site Scripting (XSS) in Under Construction <= 5.82 versions.

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Meta Information

Published
2026-09-03
Last Modified
2026-09-03
Generated
2026-09-03
AI Q&A
2026-09-03
EPSS Evaluated
N/A
NVD
CVE-2026-81295
EUVD
EUVD-2026-70562

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
webfactory_ltd under_construction_plugin to 5.82 (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.

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Executive Summary

This is an Unauthenticated Cross Site Scripting (XSS) vulnerability found in the Under Construction plugin versions 5.82 and below. It allows attackers to inject malicious scripts into web pages viewed by other users without needing authentication.

Detection Guidance

To detect this XSS vulnerability in the Under Construction plugin, check the installed version of the plugin. If it is version 5.82 or below, the system is vulnerable. Use WordPress admin panel or FTP to inspect the plugin version. No specific commands are provided in the resources, but monitoring for unusual script injections or redirects may indicate exploitation.

Impact Analysis

An attacker could exploit this to steal user sessions, deface websites, or deliver malware to visitors. Users with sensitive data on the site may face data theft or phishing attacks through compromised pages.

Compliance Impact

This XSS vulnerability could lead to unauthorized access to user data, violating GDPR's data protection requirements and HIPAA's safeguards for protected health information. Organizations may face compliance breaches and legal penalties.

Mitigation Strategies

Update the Under Construction plugin to the latest version (5.83 or higher) to patch the XSS vulnerability. If an update is not available, consider disabling or removing the plugin until a fix is released.

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