rubengc GamiPress Plugin up to 7.9.9.1 on WordPress Shortcode heading_size cross site scripting

Summaryinfo

A vulnerability described as problematic has been identified in rubengc GamiPress Plugin up to 7.9.9.1. The impacted element is an unknown function of the component Shortcode Handler. The manipulation of the argument heading_size results in cross site scripting. This vulnerability was named CVE-2026-15730. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as problematic, was found in rubengc GamiPress Plugin up to 7.9.9.1. Affected is an unknown code block of the component Shortcode Handler. The manipulation of the argument heading_size with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as 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. This is going to have an impact on integrity. CVE summarizes:

The GamiPress – Gamification plugin to reward points, achievements, badges & ranks in WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'heading_size' Shortcode Attribute in all versions up to, and including, 7.9.9.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The wp_kses_post filter applied at post save does not neutralize this payload because only the inert shortcode text is stored in post_content; the dangerous HTML is synthesized at render time by the shortcode handler, entirely bypassing save-time sanitization.

The advisory is shared for download at wordfence.com. This vulnerability is traded as CVE-2026-15730 since 07/14/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-49713). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• WordPress Plugin

Vendor

• rubengc

Name

• GamiPress Plugin

Version

• 7.9.9.0
• 7.9.9.1

CPE 2.3info

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CPE 2.2info

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Entryinfo

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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