CVE-2026-96531
Received Received - Intake

Optimole WordPress Plugin Reflected Cross-Site Scripting

Publication date: 2026-09-26

Last updated on: 2026-09-26

Assigner: WPScan

Description
The Optimole WordPress plugin before 4.2.13 does not escape unrecognized attributes of its video-player block before rendering them onto the block's wrapper element, allowing users with the Author role and above to store an event-handler attribute that executes scripts in the browser of any user, such as an administrator, who views the post.

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Meta Information

Published
2026-09-26
Last Modified
2026-09-26
Generated
2026-09-26
AI Q&A
2026-09-26
EPSS Evaluated
N/A
NVD
CVE-2026-96531
EUVD
EUVD-2026-87539

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
optimole optimole to 4.2.13 (exc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This is a stored cross-site scripting (XSS) vulnerability in the Optimole WordPress plugin versions 4.0.0 through 4.2.12. Users with the Author role or higher can inject malicious event-handler attributes into the video-player block's wrapper element. When other users, including administrators, view the post, the injected scripts execute in their browsers.

Detection Guidance

Check the installed version of the Optimole plugin in WordPress. If it is between 4.0.0 and 4.2.12, the system is vulnerable. Use the WordPress admin dashboard or run the command: wp plugin list --name=optimole to verify the version.

Impact Analysis

An attacker with Author role access could inject malicious scripts into posts. When administrators or other users view these posts, the scripts run in their browsers, potentially stealing session cookies, redirecting to phishing sites, or performing actions on their behalf. This could lead to unauthorized access to sensitive data or account compromise.

Compliance Impact

This vulnerability could lead to unauthorized access to personal data, violating GDPR's integrity and confidentiality principles. For HIPAA, it may expose protected health information (PHI) to unauthorized parties, risking compliance with safeguard requirements. Organizations using this plugin must address it to maintain regulatory compliance.

Mitigation Strategies

Update the Optimole plugin to version 4.2.13 or later immediately. This can be done via the WordPress admin dashboard under Plugins or by running: wp plugin update optimole in the WordPress directory.

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