CVE-2023-0586
All in One SEO Pack <= 4.2.9 - Authenticated (Contributor+) Stored Cross-Site Scripting
CVSS Score
6.4
EPSS Score
0.0%
EPSS Percentile
0th
The All in One SEO Pack plugin for WordPress is vulnerable to Stored Cross-Site Scripting via multiple parameters in versions up to, and including, 4.2.9 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers with Contributor+ role to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
| CWE | CWE-79 |
| Vendor | smub |
| Product | all in one seo – powerful seo plugin to boost seo rankings & increase traffic |
| Published | Feb 24, 2023 |
| Last Updated | Apr 8, 2026 |
Stay Ahead of the Next One
Get instant alerts for smub all in one seo – powerful seo plugin to boost seo rankings & increase traffic
Be the first to know when new medium vulnerabilities affecting smub all in one seo – powerful seo plugin to boost seo rankings & increase traffic are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
smub / All in One SEO – Powerful SEO Plugin to Boost SEO Rankings & Increase Traffic
0 ≤ 4.2.9
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/1c13f00e-3048-44cf-8979-2b0b0c508f3a?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/all-in-one-seo-pack/tags/4.2.9/app/Common/Admin/PostSettings.php?v=2829340#L202 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=2859011%40all-in-one-seo-pack%2Ftrunk&old=2847431%40all-in-one-seo-pack%2Ftrunk&sfp_email=&sfph_mail= wordfence.com: https://www.wordfence.com/blog/2023/02/all-in-one-seo-pack-vulnerabilities-impacting-3-million-sites-patched/ wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/1c13f00e-3048-44cf-8979-2b0b0c508f3a
Credits
Ivan Kuzymchak