CVE-2026-100152
Received Received - Intake

Arbitrary Shortcode Execution in All in One SEO WordPress Plugin

Publication date: 2026-10-03

Last updated on: 2026-10-03

Assigner: Wordfence

Description
The The All in One SEO – AI SEO Plugin to Boost SEO Rankings & Traffic (Schema, Local SEO, Sitemap & SEO Insights) plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 5.0.2 This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for unauthenticated attackers to execute arbitrary shortcodes. This requires the AIOSEO breadcrumb to be rendered on the search results page via the block, widget, shortcode, or template tag.

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Meta Information

Published
2026-10-03
Last Modified
2026-10-03
Generated
2026-10-03
AI Q&A
2026-10-03
EPSS Evaluated
N/A
NVD
CVE-2026-100152
EUVD
EUVD-2026-91907

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
aioseo all_in_one_seo_plugin to 5.0.2 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-94 The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

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Executive Summary

This vulnerability affects the All in One SEO WordPress plugin up to version 5.0.2. It allows unauthenticated attackers to execute arbitrary shortcodes by exploiting improper input validation in an action. This occurs because the plugin does not validate a value before running do_shortcode, enabling code execution if the AIOSEO breadcrumb is rendered on the search results page.

Detection Guidance

To detect this vulnerability, check if the All in One SEO plugin is installed and verify its version. If it is version 5.0.2 or lower, it is vulnerable. Look for unauthorized shortcode execution in WordPress logs or search results pages where the AIOSEO breadcrumb is rendered.

Impact Analysis

Unauthenticated attackers could exploit this to run malicious shortcodes on your WordPress site. This may lead to unauthorized actions, data theft, or further compromise of your website if the AIOSEO breadcrumb feature is active on search result pages.

Compliance Impact

This vulnerability could lead to unauthorized code execution, potentially exposing sensitive user data. If exploited, it may violate GDPR or HIPAA requirements for data protection and access controls, depending on the data processed by the affected site.

Mitigation Strategies

Update the All in One SEO plugin to the latest version beyond 5.0.2 immediately to patch the arbitrary shortcode execution vulnerability.

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