Medium severity · published Oct 2, 2026
CVE-2026-85492
All in One SEO <= 5.0.1.1 - Reflected DOM-Based Cross-Site Scripting via URL Pathname
6.1
CVSS
0.2%
EPSS
No
On KEV
Description
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 DOM-Based Cross-Site Scripting via URL Pathname in all versions up to, and including, 5.0.1.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user visits a crafted URL. Exploitation requires the victim to hold the aioseo_manage_seo capability and to open the SEO Preview panel in the WordPress admin toolbar while visiting a page with a malicious payload embedded in the URL pathname.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 11% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AI
All in One SEO – AI SEO Plugin to Boost SEO Rankings & Traffic (Schema, Local SEO, Sitemap & SEO Insights) · smub
through 5.0.1.1 · source: vendor
Affected product
AI
All in One SEO – AI SEO Plugin to Boost SEO Rankings & Traffic (Schema, Local SEO, Sitemap & SEO Insights)
smub
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-85492
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-85492
www.wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/5d4da592-3e8a-401d-b461-1770db9de654?source=cve
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/all-in-one-seo-pack/tags/5.0.1.1/dist/Lite/assets/js/GoogleSearchPreview.8286359f.js#L1
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/all-in-one-seo-pack/tags/5.0.1.1/dist/Lite/assets/js/app-core.36551fe5.js#L1
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/changeset?reponame=&new=3709882%40all-in-one-seo-pack%2Ftags%2F5.0.2&old=3670552%40all-in-one-seo-pack%2Ftags%2F5.0.1.1
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6.5
CVE-2026-100152
All in One SEO <= 5.0.2 - Unauthenticated Arbitrary Shortcode Execution via 's' Search Query Parameter