CVE-2026-15665
Description
The Fluent Support – Helpdesk & Customer Support Ticket System plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'redirect-to' Shortcode Attribute in all versions up to, and including, 2.3.0 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. The XSS payload is in a hidden attribute so it only fires in specific browsers when specific access keys are used making exploitation unlikely.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
References
- https://plugins.trac.wordpress.org/browser/fluent-support/tags/2.3.0/app/Hooks/Handlers/AuthHandler.php#L111
- https://plugins.trac.wordpress.org/browser/fluent-support/tags/2.3.0/app/Hooks/Handlers/AuthHandler.php#L149
- https://plugins.trac.wordpress.org/browser/fluent-support/tags/2.3.0/app/Hooks/Handlers/AuthHandler.php#L201
- https://plugins.trac.wordpress.org/browser/fluent-support/tags/2.3.0/app/Hooks/Handlers/AuthHandler.php#L500
- 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
CWEs
CWE-79
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.