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.

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.

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

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. 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

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