# CVE-2026-62108: Headless Single Sign On broken authentication bypass

Source: https://junglewise.ai/threats/cve-2026-62108-headless-single-sign-on-broken-authentication-bypass  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-17. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-62108 · Severity: critical · CVSS 9.8 · Published 2026-09-17

Headless Single Sign On is a WordPress plugin that manages user authentication and login for websites. Versions 1.7.0 and earlier contain a critical authentication flaw that allows attackers to bypass the login system entirely and log in as any user without a password. This vulnerability has a CVSS score of 9.8 and could lead to complete account takeover and unauthorized access to sensitive website functions and customer data.

Vendors: [miniOrange](https://junglewise.ai/threats/vendors/miniorange).

## Quick answers

**Is CVE-2026-62108 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-62108 being exploited in the wild.

**How severe is CVE-2026-62108?** Critical severity, with a CVSS score of 9.8, published 17 September 2026.

**Which products and versions are affected?** miniOrange Headless Single Sign On <= 1.7.0.

**Is there a fix for CVE-2026-62108?** A patch was published on 2026-09-15: Version 1.7.1 released Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-62108 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-62108?** Check whether you run miniOrange Headless Single Sign On 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

This is a broken authentication vulnerability (OWASP A7) in the Headless Single Sign On WordPress plugin versions 1.7.0 and earlier. The vulnerability allows unauthenticated attackers to bypass the plugin's login mechanism and gain access as arbitrary users without requiring valid credentials. No special privileges or user interaction are required for exploitation; the attack is network-accessible and can be performed by any remote attacker. The flaw has been patched in version 1.7.1. Patchstack has released a mitigation rule to block attacks against unpatched installations.

## Affected products

- miniOrange Headless Single Sign On <= 1.7.0

## Timeline

- 2026-09-15: disclosed
- 2026-09-15: patched: Version 1.7.1 released

## References

- [https://wordpress.org/plugins](https://wordpress.org/plugins)
- [https://patchstack.com/database/wordpress/plugin/headless-single-sign-on/vulnerability/wordpress-headless-single-sign-on-plugin-1-7-0-broken-authentication-vulnerability?_s_id=cve](https://patchstack.com/database/wordpress/plugin/headless-single-sign-on/vulnerability/wordpress-headless-single-sign-on-plugin-1-7-0-broken-authentication-vulnerability?_s_id=cve)