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CVE-2026-16091: GamiPress <= 7.9.9.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'gamipress_rank' Shortcode

• Severity: medium (CVSS 6.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-01 · updated 2026-08-12
• Weakness: CWE-79

Description

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.

Affected products

• rubengc GamiPress – Gamification plugin to reward points, achievements, badges & ranks in WordPress: through 7.9.9.1

References

• https://plugins.trac.wordpress.org/browser/gamipress/tags/7.9.9/includes/filters.php#L1899
• https://plugins.trac.wordpress.org/browser/gamipress/tags/7.9.9/includes/shortcodes/gamipress_rank.php#L197
• https://plugins.trac.wordpress.org/browser/gamipress/tags/7.9.9/includes/shortcodes/gamipress_rank.php#L203
• https://plugins.trac.wordpress.org/browser/gamipress/tags/7.9.9/includes/template-functions.php#L74
• https://plugins.trac.wordpress.org/browser/gamipress/tags/7.9.9/templates/rank.php#L162
• https://plugins.trac.wordpress.org/changeset?reponame=&old=3619577%40gamipress&new=3619577%40gamipress
• https://www.wordfence.com/threat-intel/vulnerabilities/id/d9f257a9-d447-407c-83ae-3cc99254be3f?source=cve

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