CVE-2026-15602 NEX-Forms <= 9.2.4 - Authenticated (Admin+) SQL Injection via 'additional_params' Parameter

Medium 4.9 Published Updated

Authenticated administrators can exploit SQL injection in NEX-Forms to extract sensitive database information via the additional_params parameter.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-15602?

CVE-2026-15602 is a medium-severity SQL injection vulnerability in webaways NEX-Forms – Ultimate Forms Plugin for WordPress, published on 16 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

The NEX-Forms – Ultimate Forms Plugin for WordPress plugin for WordPress is vulnerable to generic SQL Injection via the 'additional_params' parameter in all versions up to, and including, 9.2.4 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with admin-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. This is a second-order vulnerability; the payload is stored via the submission_report2 AJAX handler (which lacks a nonce check and relies solely on a capability that can be configured down to subscriber-level) and triggered when a CSV export is generated.

Weakness: CWE-89

Which versions are affected by CVE-2026-15602?

How do I fix CVE-2026-15602?

No fix has been published for CVE-2026-15602 yet. Limit exposure of the affected software until one is available.

Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.

Is CVE-2026-15602 being exploited?

There is no known exploitation of CVE-2026-15602 in the wild and no public exploit code.

Sources

Also known as GHSA-2vxx-wj9p-3c6m.

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