All in One SEO <= 4.1.0.1 - Authenticated Code Injection
The All in One SEO – Best WordPress SEO Plugin – Easily Improve Your SEO Rankings before 4.1.0.2 enables authenticated users with "aioseo_tools_settings" privilege (most of the time admin) to execute arbitrary code on the underlying host. Users can restore plugin's configuration by uploading a backup .ini file in the section "Tool > Import/Export". However, the plugin attempts to unserialize values of the .ini file. Moreover, the plugin embeds Monolog library which can be used to craft a gadget chain and thus trigger system command execution.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| WordPress plugin | All in One SEO – AI SEO Plugin to Boost SEO Rankings & Traffic (Schema, Local SEO, Sitemap & SEO Insights) | < 4.1.0.2 | 4.1.0.2 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H- Weakness (CWE)
CWE-94- Platform
- WordPress
- Package
All in One SEO – AI SEO Plugin to Boost SEO Rankings & Traffic (Schema, Local SEO, Sitemap & SEO Insights)- Disclosed
- 09.05.2021
- Updated
- 11.10.2026 10:23
Sources and licenses
Wordfence Intelligence - b2a98c69-5f76-41f4-8a12-0523285647fb - Wordfence Intelligence
Copyright 1999-2026 The MITRE Corporation
Copyright 2012-2026 Defiant Inc.
This record contains material that is subject to copyright
Copyright 1999-2026 The MITRE Corporation
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https://www.cve.org/Legal/TermsOfUseCopyright 2012-2026 Defiant Inc.
Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.
https://www.wordfence.com/wordfence-intelligence-terms-and-conditions/Wordfence Intelligence
Wordfence Intelligence - Defiant, Inc. Copyright Defiant, Inc. All rights reserved except as granted below. License grant, section 3.1 of the Wordfence Intelligence Terms and Conditions (January 26, 2026): Subject to this Agreement, Company hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute the Service. Any copy you make for such purposes is authorized provided that you reproduce Company’s copyright designation, this license, and the license of any disclosed Company licensor in any such copy. Full applicable Agreement: https://www.wordfence.com/wordfence-intelligence-terms-and-conditions/
Vulnerability history: All in One SEO – AI SEO Plugin to Boost SEO Rankings & Traffic (Schema, Local SEO, Sitemap & SEO Insights)
All published vulnerabilities of this package (WordPress plugin), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 32
- First → latest
- 05.2014 10.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 1
- High 5
- Medium 26
Disclosures per year
- 2017: 0
- 2018: 1
- 2019: 1
- 2020: 1
- 2021: 3
- 2022: 1
- 2023: 2
- 2024: 2
- 2025: 6
- 2026: 7
earlier: 8
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All in One SEO <= 4.1.0.1 - Authenticated Code Injection this entry
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