CVE-2026-86837
Received Received - Intake

Unauthenticated Customer Data Modification in Bookly WordPress Plugin

Publication date: 2026-09-25

Last updated on: 2026-09-25

Assigner: WPScan

Description
The Bookly WordPress plugin before 28.3 does not properly verify a customer's identity before updating their stored details, allowing unauthenticated attackers who know a customer's primary identifier to overwrite that customer's stored personal information such as name, email and address.

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Meta Information

Published
2026-09-25
Last Modified
2026-09-25
Generated
2026-09-25
AI Q&A
2026-09-25
EPSS Evaluated
N/A
NVD
CVE-2026-86837
EUVD
EUVD-2026-86621

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
bookly bookly to 28.3 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability in the Bookly WordPress plugin before version 28.3 allows unauthenticated attackers to update a customer's personal information such as name, email, and address by knowing only the customer's primary identifier. The plugin fails to properly verify the customer's identity before allowing updates.

Detection Guidance

To detect this vulnerability, check if your Bookly WordPress plugin version is below 28.3. You can do this by inspecting the plugin files or using WordPress admin panel to view the installed version. No specific commands are provided in the context.

Impact Analysis

An attacker could change your stored personal details without your knowledge or consent. This could lead to identity theft, fraud, or misuse of your personal information. The impact includes potential loss of data integrity and unauthorized modifications to your account.

Compliance Impact

This vulnerability could lead to non-compliance with data protection regulations like GDPR or HIPAA by allowing unauthorized changes to personal data. It undermines data integrity and consent requirements, potentially resulting in legal and regulatory penalties.

Mitigation Strategies

Immediately update the Bookly plugin to version 28.3 or later to patch the vulnerability. If updating is not possible, consider disabling the plugin temporarily until an update is applied.

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