# CVE-2026-103694: Mobile builder WordPress plugin privilege escalation in REST API

Source: https://junglewise.ai/threats/cve-2026-103694-the-mobile-builder-wordpress-plugin-through-1-4-2-does-not  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-11. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-103694 · Severity: high · CVSS 8.8 · Published 2026-10-11

The Mobile builder plugin for WordPress fails to properly restrict which user account settings can be modified via its REST API, allowing any logged-in user—such as a customer account—to grant themselves administrator privileges. An attacker with a basic user account can escalate to full admin control without authorization, gaining complete access to the WordPress site and its data.

Technologies: [Mobile builder](https://junglewise.ai/threats/technologies/mobile-builder). Vendors: [Mobile builder](https://junglewise.ai/threats/vendors/mobile-builder).

## Quick answers

**Is CVE-2026-103694 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-103694 being exploited in the wild.

**How severe is CVE-2026-103694?** High severity, with a CVSS score of 8.8, published 11 October 2026.

**Which products and versions are affected?** Mobile builder through 1.4.2.

**Is there a fix for CVE-2026-103694?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-103694 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-103694?** Check whether you run Mobile builder 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.

## Technical details

The vulnerability is a privilege escalation (CWE-269) in the Mobile builder REST route handler that does not validate which user meta keys authenticated users can modify. An attacker with a self-registered account can modify the wp_capabilities or wp_user_level meta keys to grant themselves the administrator role. No authorization check is performed on the meta key being updated, allowing any authenticated user to perform the escalation.

## Affected products

- Mobile builder Mobile builder through 1.4.2

## Timeline

- 2026-10-09: disclosed
- 2026-10-11: advisory

## References

- [https://wpscan.com/vulnerability/5d087920-26f3-4c71-bfcb-ae9a70cc407f/](https://wpscan.com/vulnerability/5d087920-26f3-4c71-bfcb-ae9a70cc407f/)

## Related threats

- [Mobile Builder WordPress plugin SQL injection](https://junglewise.ai/threats/cve-2026-103696-the-mobile-builder-wordpress-plugin-through-1-4-2-does-not)
- [Mobile Builder WordPress plugin SQL injection](https://junglewise.ai/threats/cve-2026-103695-the-mobile-builder-wordpress-plugin-through-1-4-2-does-not)