CVE-2026-5293— 診断ジェネレータ作成プラグイン <= 1.4.16 - Authenticated (Subscriber+) Stored Cross-Site Scripting via 'js' Parameter
Possible ATT&CK Techniques 3AI
T1059 · Command and Scripting Interpreter T1133 · External Remote Services T1059.007 · JavaScriptAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| olivesystem | 診断ジェネレータ作成プラグイン | ≤ 1.4.16 | affected |
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I. Basic Information for CVE-2026-5293
Vulnerability Information
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Vulnerability Title
診断ジェネレータ作成プラグイン <= 1.4.16 - Authenticated (Subscriber+) Stored Cross-Site Scripting via 'js' Parameter
Source: NVD (National Vulnerability Database)
Vulnerability Description
The 診断ジェネレータ作成プラグイン (Diagnosis Generator) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'js' parameter in versions up to and including 1.4.16. This is due to missing authorization checks and insufficient input sanitization in the themeFunc() function. The function is hooked to 'admin_init' and processes theme update requests without verifying user capabilities, allowing any authenticated user (including subscribers) to save malicious JavaScript to theme files. Additionally, the save() function uses stripslashes() which removes WordPress's magic quotes protection. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in theme files that will execute whenever a user accesses a page containing the diagnosis form shortcode.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
Vulnerability Title
WordPress plugin os-diagnosis-generator 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin os-diagnosis-generator 1.4.16及之前版本存在跨站脚本漏洞，该漏洞源于themeFunc函数缺少授权检查和输入清理不足，该函数挂钩到admin_init并处理主题更新请求而不验证用户能力，允
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| olivesystem | 診断ジェネレータ作成プラグイン | 0 ~ 1.4.16 | - |
II. Public POCs for CVE-2026-5293
| # | POC Description | Source Link | Shenlong Link |
|---|
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News · 1Vendor · 1Other · 1
IV. Related Vulnerabilities
Same weakness: CWE-79
- CVE-2026-8353
Concrete CMS version 9.0 to 9.5.0 is vulnerable to Stored XS - CVE-2026-3481
WP Blockade <= 0.9.14 - Reflected Cross-Site Scripting via ' - CVE-2026-7509
KIA Subtitle <= 4.0.1 - [Improper Neutralization of Input Du - CVE-2026-6864
CBX 5 Star Rating & Review <= 1.0.7 - Reflected Cross-Site S - CVE-2026-9104
Draft List <= 2.6.3 - Authenticated (Author+) Stored Cross-S
V. Comments for CVE-2026-5293
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