# CVE-2026-116402: Brainstorm Force SureForms content injection via XSS

Source: https://junglewise.ai/threats/cve-2026-116402-improper-neutralization-of-script-related-html-tags-in-a-web  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-29. Updated: 2026-10-29  
License: CC BY 4.0 with a link back

CVE-2026-116402 · Severity: medium · CVSS 5.3 · Published 2026-10-29

SureForms is a WordPress plugin that allows website administrators to create and manage forms on their sites. An improper handling of user-supplied HTML allows attackers to inject malicious scripts or unwanted content into web pages without authentication, potentially leading to data theft, account takeover, or malware distribution to site visitors.

Technologies: [Brainstorm Force SureForms](https://junglewise.ai/threats/technologies/sureforms). Vendors: [Brainstorm Force](https://junglewise.ai/threats/vendors/brainstorm-force).

## Quick answers

**Is CVE-2026-116402 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-116402 being exploited in the wild.

**How severe is CVE-2026-116402?** Medium severity, with a CVSS score of 5.3, published 29 October 2026.

**Which products and versions are affected?** Brainstorm Force SureForms through 2.12.9.

**Is there a fix for CVE-2026-116402?** Yes: fixed in 2.13.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-116402 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-116402?** Check whether you run Brainstorm Force SureForms at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in 2.13.0

## Technical details

The vulnerability is an improper neutralization of script-related HTML tags (CWE-79: Improper Neutralization of Input During Web Page Generation), allowing unauthenticated attackers to inject arbitrary HTML and JavaScript content. The affected component is the form input handling in SureForms versions up to 2.12.9. An attacker can craft malicious input that gets rendered on the page without sanitization, executing arbitrary code in the context of the website.

## Affected products

- Brainstorm Force SureForms through 2.12.9

## Timeline

- 2026-10-24: disclosed
- 2026-10-29: advisory

## References

- [https://wordpress.org/plugins](https://wordpress.org/plugins)
- [https://patchstack.com/database/wordpress/plugin/sureforms/vulnerability/wordpress-sureforms-plugin-2-12-9-content-injection-vulnerability?_s_id=cve](https://patchstack.com/database/wordpress/plugin/sureforms/vulnerability/wordpress-sureforms-plugin-2-12-9-content-injection-vulnerability?_s_id=cve)

## Related threats

- [Brainstorm Force SureForms broken access control](https://junglewise.ai/threats/cve-2026-125763-missing-authorization-vulnerability-in-brainstorm-force)
- [Brainstorm Force SureForms broken access control](https://junglewise.ai/threats/cve-2026-120842-missing-authorization-vulnerability-in-brainstorm-force)
- [Brainstorm Force SureForms broken access control vulnerability](https://junglewise.ai/threats/cve-2026-116387-missing-authorization-vulnerability-in-brainstorm-force)
- [Brainstorm Force SureForms stored cross-site scripting](https://junglewise.ai/threats/cve-2026-108495-improper-neutralization-of-input-during-web-page-generation)
- [Brainstorm Force SureForms authorization bypass in access control](https://junglewise.ai/threats/cve-2026-85308-brainstorm-force-sureforms-authorization-bypass-in-access-control)