CVE-2026-86612 Ninja Tables < 5.2.17 - Unauthenticated Arbitrary Shortcode Execution via Fluent Forms Data Source
Unauthenticated attackers can execute arbitrary shortcodes and break pages via form entries in Ninja Tables when using Fluent Forms data sources.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-86612?
CVE-2026-86612 is a medium-severity code injection vulnerability in Unknown Ninja Tables, published on 23 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Ninja Tables WordPress plugin before 5.2.17 does not restrict shortcode expansion to administrator-authored table rows which, in a non-default configuration, allows unauthenticated users to have arbitrary shortcodes executed on a public page, and to permanently break that page, by submitting an ordinary form entry.
Weakness: CWE-74
Which versions are affected by CVE-2026-86612?
How do I fix CVE-2026-86612?
No fix has been published for CVE-2026-86612 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-86612 being exploited?
There is no known exploitation of CVE-2026-86612 in the wild and no public exploit code.
Sources
Also known as GHSA-rhgj-339r-2wcp.