# CVE-2026-15665: WPManageNinja Fluent Support Stored XSS in redirect-to shortcode

Source: https://junglewise.ai/threats/cve-2026-15665-wpmanageninja-fluent-support-stored-xss-in-redirect-to-shortcode  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-24. Updated: 2026-07-24  
License: CC BY 4.0 with a link back

CVE-2026-15665 · Severity: medium · CVSS 6.4 · Published 2026-07-24

The Fluent Support plugin for WordPress, which provides helpdesk and customer support ticketing functionality, contains a security flaw in its shortcode handling. This vulnerability allows users with contributor-level access or higher to inject malicious scripts into website pages. While the script is hidden and difficult to trigger, a successful exploit could allow an attacker to perform unauthorized actions in the context of another user's browser session.

Technologies: [WPManageNinja Fluent Support – Helpdesk & Customer Support Ticket System](https://junglewise.ai/threats/technologies/fluent-support). Vendors: [WPManageNinja](https://junglewise.ai/threats/vendors/wpmanageninja).

## Quick answers

**Is CVE-2026-15665 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-15665 being exploited in the wild.

**How severe is CVE-2026-15665?** Medium severity, with a CVSS score of 6.4, published 24 July 2026.

**Which products and versions are affected?** WPManageNinja Fluent Support – Helpdesk & Customer Support Ticket System up to, and including, 2.3.0.

**Is there a fix for CVE-2026-15665?** 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-2026-15665 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-15665?** Check whether you run WPManageNinja Fluent Support – Helpdesk & Customer Support Ticket System 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

The Fluent Support plugin for WordPress is vulnerable to Stored Cross-Site Scripting (XSS) due to insufficient input sanitization and output escaping on the 'redirect-to' attribute within its shortcodes. Authenticated attackers with contributor-level permissions or higher can inject arbitrary web scripts into pages. The vulnerability is rooted in AuthHandler.php where user-supplied input is not properly neutralized before being rendered. Although the payload is stored in a hidden attribute—making execution dependent on specific browser behaviors or access keys—it remains a security risk that could lead to session hijacking or unauthorized data access. A patch was introduced in versions following 2.3.0.

## Affected products

- WPManageNinja Fluent Support – Helpdesk & Customer Support Ticket System up to, and including, 2.3.0

## Timeline

- 2026-07-24: disclosed: CVE published by Wordfence/NVD

## References

- [https://plugins.trac.wordpress.org/browser/fluent-support/tags/2.3.0/app/Hooks/Handlers/AuthHandler.php](https://plugins.trac.wordpress.org/browser/fluent-support/tags/2.3.0/app/Hooks/Handlers/AuthHandler.php)
- [https://plugins.trac.wordpress.org/browser/fluent-support/tags/2.3.0/app/Hooks/Handlers/AuthHandler.php](https://plugins.trac.wordpress.org/browser/fluent-support/tags/2.3.0/app/Hooks/Handlers/AuthHandler.php)
- [https://plugins.trac.wordpress.org/browser/fluent-support/tags/2.3.0/app/Hooks/Handlers/AuthHandler.php](https://plugins.trac.wordpress.org/browser/fluent-support/tags/2.3.0/app/Hooks/Handlers/AuthHandler.php)
- [https://plugins.trac.wordpress.org/browser/fluent-support/tags/2.3.0/app/Hooks/Handlers/AuthHandler.php](https://plugins.trac.wordpress.org/browser/fluent-support/tags/2.3.0/app/Hooks/Handlers/AuthHandler.php)
- [https://plugins.trac.wordpress.org/changeset?reponame=&old=3609122%40fluent-support&new=3609122%40fluent-support](https://plugins.trac.wordpress.org/changeset?reponame=&old=3609122%40fluent-support&new=3609122%40fluent-support)
- [https://www.wordfence.com/threat-intel/vulnerabilities/id/0c963224-e680-4ca6-85ae-07cd0ee6c1d4?source=cve](https://www.wordfence.com/threat-intel/vulnerabilities/id/0c963224-e680-4ca6-85ae-07cd0ee6c1d4?source=cve)