CVE-2026-5075
Deferred Deferred - Pending Action
Sensitive Information Exposure in All in One SEO WordPress Plugin

Publication date: 2026-05-20

Last updated on: 2026-05-20

Assigner: Wordfence

Description
The All in One SEO plugin for WordPress is vulnerable to Sensitive Information Exposure via 'internalOptions' localized script data in versions up to, and including, 4.9.7 due to sensitive internal option data being passed to wp_localize_script() in post editor contexts without effective masking for low-privilege users. This makes it possible for authenticated attackers, with contributor-level access and above, to view configured API/OAuth tokens and license-related values from page source.
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Meta Information
Published
2026-05-20
Last Modified
2026-05-20
Generated
2026-06-09
AI Q&A
2026-05-20
EPSS Evaluated
2026-06-08
NVD
CVE-2026-5075
EUVD
EUVD-2026-31059
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
all_in_one_seo all_in_one_seo to 4.9.7 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-200 The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
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Executive Summary

The All in One SEO plugin for WordPress versions up to and including 4.9.7 has a vulnerability where sensitive internal option data is exposed via the 'internalOptions' localized script data. This happens because sensitive data is passed to the wp_localize_script() function in post editor contexts without proper masking for users with low privileges.

As a result, authenticated attackers with contributor-level access or higher can view sensitive information such as configured API/OAuth tokens and license-related values by inspecting the page source.

Impact Analysis

This vulnerability allows attackers with contributor-level access or above to access sensitive information like API/OAuth tokens and license-related data that should normally be protected.

Exposure of such sensitive tokens can lead to unauthorized access to external services or APIs, potentially compromising the security of the website or connected systems.

Compliance Impact

This vulnerability allows authenticated attackers with contributor-level access and above to view sensitive internal option data, including configured API/OAuth tokens and license-related values. Exposure of such sensitive information could potentially lead to non-compliance with data protection standards and regulations like GDPR and HIPAA, which require safeguarding sensitive data against unauthorized access.

However, the provided information does not explicitly detail the impact on compliance with these standards or any specific regulatory consequences.

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