# CVE-2026-39721: Brainstorm Force Starter Templates broken access control

Source: https://junglewise.ai/threats/cve-2026-39721-missing-authorization-vulnerability-in-brainstorm-force-starter  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-05. Updated: 2026-10-05  
License: CC BY 4.0 with a link back

CVE-2026-39721 · Severity: medium · CVSS 5.4 · Published 2026-10-05

Starter Templates is a WordPress plugin that helps users set up pre-designed website layouts quickly. A broken access control flaw allows users with contributor-level permissions to view or perform actions they should not be authorized to access, potentially exposing sensitive site data or functionality.

Technologies: [Brainstorm Force Starter Templates](https://junglewise.ai/threats/technologies/starter-templates). Vendors: [Brainstorm Force](https://junglewise.ai/threats/vendors/brainstorm-force).

## Quick answers

**Is CVE-2026-39721 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-39721 being exploited in the wild.

**How severe is CVE-2026-39721?** Medium severity, with a CVSS score of 5.4, published 5 October 2026.

**Which products and versions are affected?** Brainstorm Force Starter Templates through 4.7.7.

**Is there a fix for CVE-2026-39721?** Yes: fixed in 4.7.8. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-39721 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-39721?** Check whether you run Brainstorm Force Starter Templates 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 4.7.8

## Technical details

A broken access control vulnerability in Starter Templates allows authenticated users with contributor privileges to bypass authorization checks and access restricted pages or perform unauthorized actions. The vulnerability affects versions through 4.7.7 and requires contributor-level access to exploit. It has been patched in version 4.7.8.

## Affected products

- Brainstorm Force Starter Templates through 4.7.7

## Timeline

- 2026-10-05: disclosed
- 2026-10-05: patched

## References

- [https://wordpress.org/plugins](https://wordpress.org/plugins)
- [https://patchstack.com/database/wordpress/plugin/astra-sites/vulnerability/wordpress-starter-templates-plugin-4-7-7-broken-access-control-vulnerability?_s_id=cve](https://patchstack.com/database/wordpress/plugin/astra-sites/vulnerability/wordpress-starter-templates-plugin-4-7-7-broken-access-control-vulnerability?_s_id=cve)

## Related threats

- [Brainstorm Force Starter Templates stored cross-site scripting](https://junglewise.ai/threats/cve-2026-102393-improper-neutralization-of-input-during-web-page-generation)
- [Starter Templates contributor IDOR vulnerability](https://junglewise.ai/threats/cve-2026-62134-starter-templates-contributor-idor-vulnerability)