olivesystem 診断ジェネレータ作成プラグイン Plugin Shortcode themeFunc cross site scripting

Summaryinfo

A vulnerability, which was classified as problematic, has been found in olivesystem 診断ジェネレータ作成プラグイン Plugin up to 1.4.16 on WordPress. Affected by this vulnerability is the function themeFunc of the component Shortcode Handler. This manipulation of the argument js causes cross site scripting. This vulnerability is handled as CVE-2026-5293. The attack can be initiated remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in olivesystem 診断ジェネレータ作成プラグイン Plugin up to 1.4.16 on WordPress. Affected by this vulnerability is the function themeFunc of the component Shortcode Handler. The manipulation of the argument js with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. The summary by CVE is:

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.

The weakness was released by Nabil Irawan. It is possible to read the advisory at wordfence.com. This vulnerability is known as CVE-2026-5293 since 03/31/2026. The exploitation appears to be easy. The attack can be launched remotely. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

Upgrading to version 1.4.16 eliminates this vulnerability.

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Productinfo

Type

• WordPress Plugin

Vendor

• olivesystem

Name

• 診断ジェネレータ作成プラグイン Plugin

Version

• 1.4.0
• 1.4.1
• 1.4.2
• 1.4.3
• 1.4.4
• 1.4.5
• 1.4.6
• 1.4.7
• 1.4.8
• 1.4.9
• 1.4.10
• 1.4.11
• 1.4.12
• 1.4.13
• 1.4.14
• 1.4.15
• 1.4.16

CPE 2.3info

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CPE 2.2info

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