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CVE-2026-104001— Slim SEO <= 4.11.1 - Authenticated (Subscriber+) Arbitrary Shortcode Execution via 'Biographical Info' User Meta

Quick assessment

Affected
rilwis Slim SEO – AI SEO Plugin, Lightweight, Fast & Automated
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.

WordPress 插件"The Slim SEO – AI SEO Plugin, Lightweight, Fast & Automated"在 4.11.1 及之前的所有版本中存在任意短代码执行漏洞。该漏洞源于软件在调用 do_shortcode 函数前，未对用户触发的操作中的相关值进行充分验证。因此，拥有订阅者（Subscriber）及以上权限的已认证攻击者，可以执行任意短代码。订阅者级别的用户只需通过 REST API 或 wp-admin 个人资料页面，将短代码载荷保存至其个人简介（Biographic

CVSS 5.4 · Medium EPSS 0.23% · P13

Affected Version Matrix 1

VendorProduct Version RangeStatus
rilwis Slim SEO – AI SEO Plugin, Lightweight, Fast & Automated ≤ 4.11.1 affected
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I. Basic Information for CVE-2026-104001

Vulnerability Information
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Vulnerability Title
Slim SEO <= 4.11.1 - Authenticated (Subscriber+) Arbitrary Shortcode Execution via 'Biographical Info' User Meta
Source: CVE Program / CVE List V5
Vulnerability Description
The The Slim SEO – AI SEO Plugin, Lightweight, Fast & Automated plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 4.11.1 This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for authenticated attackers, with subscriber-level access and above, to execute arbitrary shortcodes. A Subscriber-level user need only save the shortcode payload to their own Biographical Info field via the REST API or wp-admin profile page; the shortcode then executes on any unauthenticated front-end request that resolves that author's description, such as requests using the ?author= query parameter when auto_redirection is disabled.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
rilwis Slim SEO – AI SEO Plugin, Lightweight, Fast & Automated 0 ~ 4.11.1 -

II. Public POCs for CVE-2026-104001

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III. Intelligence Information for CVE-2026-104001

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Patches & Fixes for CVE-2026-104001 (1)

Vendor Pages for CVE-2026-104001 (4)

Other References for CVE-2026-104001 (1)

IV. Related Vulnerabilities

Same vendor: rilwis
Same weakness: CWE-94

V. Comments for CVE-2026-104001

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