Quick answers
- Is CVE-2026-16090 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-16090 being exploited in the wild.
- How severe is CVE-2026-16090?
- Medium severity, with a CVSS score of 6.4, published 1 August 2026.
- Which products and versions are affected?
- GamiPress up to, and including, 7.9.9.1.
- Is there a fix for CVE-2026-16090?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-16090 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-16090?
- Check whether you run GamiPress at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A Stored Cross-Site Scripting (XSS) vulnerability exists in the GamiPress plugin due to insufficient input sanitization and output escaping of the 'heading_size' attribute within the 'gamipress_achievement' shortcode. Authenticated attackers with contributor-level permissions or higher can inject arbitrary web scripts. Because the payload is stored within a shortcode attribute rather than raw HTML, it bypasses standard WordPress 'wp_kses_post' filters and is executed when the shortcode is rendered on the front end. The issue is addressed in versions following 7.9.9.1.
Affected products
- rubengc GamiPress – Gamification plugin to reward points, achievements, badges & ranks in WordPress up to, and including, 7.9.9.1
Timeline
- 2026-08-01: advisory: NVD publication date
- 2026-08-01: disclosed: Wordfence advisory published
References
- https://plugins.trac.wordpress.org/browser/gamipress/tags/7.9.9/includes/filters.php
- https://plugins.trac.wordpress.org/browser/gamipress/tags/7.9.9/includes/shortcodes/gamipress_achievement.php
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3619577%40gamipress&new=3619577%40gamipress
- https://www.wordfence.com/threat-intel/vulnerabilities/id/77727d02-796b-4c5b-ad5d-d1c366760abc?source=cve