# CVE-2026-109692: ThemeGrill User Registration broken access control

Source: https://junglewise.ai/threats/cve-2026-109692-missing-authorization-vulnerability-in-themegrill-user  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-15. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-109692 · Severity: high · CVSS 7.1 · Published 2026-10-15

ThemeGrill User Registration is a WordPress plugin that manages user sign-ups and account creation. A broken access control vulnerability in versions up to 5.2.8 allows subscribers to access pages and perform actions they should not be permitted to, such as viewing other users' data. An attacker with a basic subscriber account can exploit this to access sensitive information from other users on the site.

Technologies: [ThemeGrill User Registration](https://junglewise.ai/threats/technologies/themegrill-user-registration). Vendors: [ThemeGrill](https://junglewise.ai/threats/vendors/themegrill).

## Quick answers

**Is CVE-2026-109692 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-109692 being exploited in the wild.

**How severe is CVE-2026-109692?** High severity, with a CVSS score of 7.1, published 15 October 2026.

**Which products and versions are affected?** ThemeGrill User Registration through 5.2.8.

**Is there a fix for CVE-2026-109692?** Yes: fixed in 5.3.0. Until then: Apply Patchstack's mitigation rule to block attacks against this vulnerability until you can update the plugin to version 5.3.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-109692 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-109692?** Check whether you run ThemeGrill User Registration 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 5.3.0

Apply Patchstack's mitigation rule to block attacks against this vulnerability until you can update the plugin to version 5.3.0 or later.

## Technical details

A broken access control vulnerability in ThemeGrill User Registration allows subscribers to bypass authorization checks and access restricted pages or user data. The vulnerability affects versions through 5.2.8 and is remotely exploitable by a subscriber-level attacker without special preconditions. The vulnerability is fixed in version 5.3.0 and later.

## Affected products

- ThemeGrill User Registration through 5.2.8

## Timeline

- 2026-10-15: disclosed
- 2026-10-13: patched: version 5.3.0 released

## References

- [https://wordpress.org/plugins](https://wordpress.org/plugins)
- [https://patchstack.com/database/wordpress/plugin/user-registration/vulnerability/wordpress-user-registration-plugin-5-2-8-broken-access-control-vulnerability-3?_s_id=cve](https://patchstack.com/database/wordpress/plugin/user-registration/vulnerability/wordpress-user-registration-plugin-5-2-8-broken-access-control-vulnerability-3?_s_id=cve)

## Related threats

- [ThemeGrill User Registration broken access control](https://junglewise.ai/threats/cve-2026-124258-missing-authorization-vulnerability-in-themegrill-user)
- [ThemeGrill User Registration broken access control](https://junglewise.ai/threats/cve-2026-119522-missing-authorization-vulnerability-in-themegrill-user)
- [ThemeGrill User Registration missing authorization](https://junglewise.ai/threats/cve-2026-120840-missing-authorization-vulnerability-in-themegrill-user)
- [ThemeGrill User Registration Cross Site Scripting](https://junglewise.ai/threats/cve-2026-27061-subscriber-cross-site-scripting-xss-in-user-registration-5-3-0)
- [ThemeGrill User Registration broken access control](https://junglewise.ai/threats/cve-2026-25450-missing-authorization-vulnerability-in-themegrill-user)