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
Summary
| CVE | CVE-2026-5293 |
|---|---|
| State | PUBLISHED |
| Assigner | Wordfence |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-05-20 02:16:37 UTC |
| Updated | 2026-05-20 13:54:54 UTC |
| 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. |
Risk And Classification
Primary CVSS: v3.1 6.4 MEDIUM from [email protected]
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
EPSS: 0.000630000 probability, percentile 0.196590000 (date 2026-05-27)
Problem Types: CWE-79 | CWE-79 CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 6.4 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
| 3.1 | CNA | DECLARED | 6.4 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
ChangedConfidentiality
LowIntegrity
LowAvailability
NoneCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Olivesystem | affected 1.4.16 semver | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| plugins.trac.wordpress.org/browser/os-diagnosis-generator/tags/1.4.16/class/themeClass.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/os-diagnosis-generator/trunk/include_files/user-viewF... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/os-diagnosis-generator/tags/1.4.16/include_files/user... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/os-diagnosis-generator/tags/1.4.16/diagnosisAdminClas... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/os-diagnosis-generator/trunk/class/themeClass.php | [email protected] | plugins.trac.wordpress.org | |
| www.wordfence.com/threat-intel/vulnerabilities/id/c5293c0f-90b0-41df-a623-90297... | [email protected] | www.wordfence.com | |
| plugins.trac.wordpress.org/browser/os-diagnosis-generator/trunk/diagnosisAdminClass.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/os-diagnosis-generator/trunk/class/themeClass.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/os-diagnosis-generator/tags/1.4.16/class/themeClass.php | [email protected] | plugins.trac.wordpress.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Nabil Irawan (en)
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| CNA | 2026-05-19T12:02:54.000Z | Disclosed |
There are currently no legacy QID mappings associated with this CVE.