CVE-2026-15178 Fluent Forms <= 6.2.5 - Missing Authorization to Authenticated (Custom+) Sensitive Data Exposure and Modification
Authenticated attackers with Custom-level access can read, modify, or delete private form submissions and alter global plugin settings due to missing authorization checks.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-15178?
CVE-2026-15178 is a medium-severity missing authorization vulnerability in wpmanageninja Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder, published on 10 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Fluent Forms plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 6.2.5. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with Custom-level access and above, to read private form submissions, change submission statuses, permanently delete submissions, and modify global plugin settings.
Weakness: CWE-862
Which versions are affected by CVE-2026-15178?
How do I fix CVE-2026-15178?
No fix has been published for CVE-2026-15178 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-15178 being exploited?
There is no known exploitation of CVE-2026-15178 in the wild and no public exploit code.
Sources
Also known as GHSA-pmcp-c5j9-q942.