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CVE-2026-85492— All in One SEO <= 5.0.1.1 - Reflected DOM-Based Cross-Site Scripting via URL Pathname

Quick assessment

Affected
smub All in One SEO – AI SEO Plugin to Boost SEO Rankings & Traffic (Schema, Local SEO, Sitemap & SEO Insights)
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

适用于 WordPress 的“All in One SEO – AI SEO 插件用于提升 SEO 排名和流量（支持结构化数据、本地 SEO、网站地图及 SEO 洞察）”插件，在所有 5.0.1.1 及以下版本中存在基于 DOM 的跨站脚本漏洞（DOM-Based XSS），该漏洞源于 URL 路径名（URL Pathname）输入中缺乏足够的输入清理和输出转义。这使得未经身份验证的攻击者能够在网页中注入任意恶意 Web 脚本，当用户访问包含构造的恶意 URL 时，脚本将自动执行。利用此漏洞需要受害者具备 aio

CVSS 6.1 · Medium EPSS 0.37% · P28

Affected Version Matrix 1

VendorProduct Version RangeStatus
smub All in One SEO – AI SEO Plugin to Boost SEO Rankings & Traffic (Schema, Local SEO, Sitemap & SEO Insights) ≤ 5.0.1.1 affected
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I. Basic Information for CVE-2026-85492

Vulnerability Information
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Vulnerability Title
All in One SEO <= 5.0.1.1 - Reflected DOM-Based Cross-Site Scripting via URL Pathname
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
smub All in One SEO – AI SEO Plugin to Boost SEO Rankings & Traffic (Schema, Local SEO, Sitemap & SEO Insights) 0 ~ 5.0.1.1 -

II. Public POCs for CVE-2026-85492

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III. Intelligence Information for CVE-2026-85492

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Vendor Advisories for CVE-2026-85492 (1)

Other References for CVE-2026-85492 (1)

IV. Related Vulnerabilities

Same product: All in One SEO – AI SEO Plugin to Boost SEO Rankings & Traffic (Schema, Local SEO, Sitemap & SEO Insights)
Same vendor: smub
Same weakness: CWE-79

V. Comments for CVE-2026-85492

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