EUVD-2026-51763
GHSA-c2g3-mwf4-9w67
Severity by source
AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Stored XSS execution requires victim page visit (UI:R); contributor auth required (PR:L); scope change correctly applied as scripts affect other users.
Primary rating from Vendor (Wordfence).
CVSS VectorVendor: Wordfence
Lifecycle Timeline
2DescriptionCVE.org
The GamiPress - Gamification plugin to reward points, achievements, badges & ranks in WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'gamipress_rank' Shortcode 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.
AnalysisAI
Stored Cross-Site Scripting in GamiPress WordPress plugin (versions through 7.9.9.1) enables contributor-level authenticated users to inject persistent JavaScript payloads via the 'gamipress_rank' shortcode, which then executes silently in any visitor's browser upon page load. The CVSS Scope Changed metric (S:C) reflects that injected scripts escape the plugin's component boundary and can compromise administrator sessions or site visitors. No public exploit code has been identified at time of analysis, and this CVE does not appear in CISA KEV.
Technical ContextAI
GamiPress (by rubengc) is a WordPress gamification plugin providing points, achievements, badges, and ranks via shortcodes. Per CPE cpe:2.3:a:rubengc:gamipress_-_gamification_plugin_to_reward_points,_achievements,_badges_&_ranks_in_wordpress:*:*:*:*:*:*:*:*, all plugin versions through 7.9.9.1 are affected. Wordfence trac references pinpoint the defect across four files: insufficient input sanitization in includes/shortcodes/gamipress_rank.php (lines 197 and 203), an unescaped output in includes/filters.php (line 1899), a shared helper in includes/template-functions.php (line 74), and the rendering template at templates/rank.php (line 162). CWE-79 (Improper Neutralization of Input During Web Page Generation) confirms the root cause is unsanitized shortcode attribute values being persisted in WordPress post content and later echoed into HTML without escaping, producing classic stored XSS.
RemediationAI
Update GamiPress to a version beyond 7.9.9.1 as soon as one is available; a patch changeset has been committed to the WordPress plugin repository (https://plugins.trac.wordpress.org/changeset?reponame=&old=3619577%40gamipress&new=3619577%40gamipress), though the exact released version number is not confirmed in the available data. In the interim, sites that cannot immediately update should restrict the WordPress contributor role to trusted users only, which eliminates the required privilege precondition and prevents exploitation. If the GamiPress rank shortcode feature is not actively used, site administrators can disable shortcode rendering in untrusted user roles using a role-based capability plugin (trade-off: may disable other shortcode-dependent features for contributors). As a compensating control, a web application firewall rule blocking script tags and javascript: URIs in shortcode attributes can reduce exposure, though this should not be treated as a permanent fix.
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External POC / Exploit Code
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