CVE-2026-15730: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in rubengc GamiPress – Gamification plugin to reward points, achievements, badges & ranks in WordPress
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.
AI Analysis
Technical Summary
CVE-2026-15730 describes a stored Cross-Site Scripting vulnerability in the GamiPress WordPress plugin (up to version 7.9.9.1). The issue is due to improper neutralization of input during web page generation, specifically via the 'heading_size' shortcode attribute. Authenticated attackers with contributor-level privileges or higher can inject arbitrary scripts that execute in the context of users viewing the injected pages. The wp_kses_post filter applied at post save does not prevent exploitation because the malicious HTML is synthesized dynamically at render time by the shortcode handler, circumventing save-time sanitization.
Potential Impact
Successful exploitation allows an attacker with contributor-level or higher access to inject and execute arbitrary JavaScript in the context of users viewing the affected pages. This can lead to information disclosure, session hijacking, or other client-side impacts. The vulnerability does not affect availability and requires authenticated access with low complexity.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict contributor-level and higher access to trusted users only. Monitor official rubengc or GamiPress channels for updates and apply patches promptly once released.
CVE-2026-15730: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in rubengc GamiPress – Gamification plugin to reward points, achievements, badges & ranks in WordPress
Description
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.
CVSS v3.1
Score 6.4medium
Affected software
rubengc
GamiPress – Gamification plugin to reward points, achievements, badges & ranks in WordPress
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-15730 describes a stored Cross-Site Scripting vulnerability in the GamiPress WordPress plugin (up to version 7.9.9.1). The issue is due to improper neutralization of input during web page generation, specifically via the 'heading_size' shortcode attribute. Authenticated attackers with contributor-level privileges or higher can inject arbitrary scripts that execute in the context of users viewing the injected pages. The wp_kses_post filter applied at post save does not prevent exploitation because the malicious HTML is synthesized dynamically at render time by the shortcode handler, circumventing save-time sanitization.
Potential Impact
Successful exploitation allows an attacker with contributor-level or higher access to inject and execute arbitrary JavaScript in the context of users viewing the affected pages. This can lead to information disclosure, session hijacking, or other client-side impacts. The vulnerability does not affect availability and requires authenticated access with low complexity.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict contributor-level and higher access to trusted users only. Monitor official rubengc or GamiPress channels for updates and apply patches promptly once released.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-07-14T13:36:55.591Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a685c469c2644c7f83afabf
Added to database: 07/28/2026, 07:37:42 UTC
Last enriched: 07/29/2026, 23:59:51 UTC
Last updated: 09/11/2026, 22:06:31 UTC
Views: 74
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