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Vulnerability · Published Oct 31, 2026 · Assigned by Wordfence

CVE-2026-109367All in One SEO <= 5.0.3 - Unauthenticated Sensitive Information Disclosure in 's' Search Query Parameter

Medium 5.3

In plain English

A medium-severity information exposure in All in One SEO – AI SEO Plugin to Boost SEO Rankings & Traffic (Schema, Local SEO, Sitemap & SEO Insights) from smub. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 21% of all known vulnerabilities).

Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.3%top 79.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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 Sensitive Information Exposure in all versions up to, and including, 5.0.3 via the 's' parameter. This makes it possible for unauthenticated attackers to extract arbitrary non-public post meta values, including sensitive custom fields such as API keys and internal notes, emitted verbatim into the HTML title element and JSON-LD SearchResultsPage schema.

Affected products (as reported)

VendorProductVersions
smub All in One SEO – AI SEO Plugin to Boost SEO Rankings & Traffic (Schema, Local SEO, Sitemap & SEO Insights) 0 – through 5.0.3

Weakness: CWE-200 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

References