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CVE-2026-59545 – Authentication Bypass – miniOrange Discord Integration WordPress Plugin (≤ 2.2.4)

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Summary

CVE-2026-59545 is an unauthenticated broken authentication vulnerability (CWE-288: Authentication Bypass Using an Alternate Path or Channel) affecting the miniOrange Discord Integration WordPress plugin in all versions up to and including 2.2.4. With a CVSS v3.1 score of 8.1 (High), the flaw allows remote, unauthenticated attackers to bypass the plugin’s authentication controls with no credentials or user interaction required. A patched version (2.2.5) has been released and immediate upgrade is strongly recommended.

Technical details

  • Root cause: The vulnerability is classified as CWE-288 — Authentication Bypass Using an Alternate Path or Channel — indicating that the plugin’s Discord-based authentication flow can be circumvented via an unintended alternate path, allowing attackers to authenticate without valid credentials.
  • Trigger conditions: No authentication and no user interaction are required. Attack Complexity is rated HIGH, meaning specific conditions or configurations must be present on the target site for exploitation to succeed.
  • Attack vector: Network-accessible; exploitable remotely against any internet-exposed WordPress instance running a vulnerable version of the plugin.
  • Impact: Successful exploitation can result in unauthorized access to WordPress user accounts linked through Discord login, privilege escalation within the WordPress site, and potential full site compromise. The CVSS impact metrics are High across Confidentiality, Integrity, and Availability.

Affected software

  • miniOrange Discord Integration WordPress Plugin, all versions up to and including 2.2.4

Severity

  • CVSS v3.1 Base Score: 8.1 (High)
  • Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Mitigation and recommended actions

  • Immediate: Update the miniOrange Discord Integration plugin to version 2.2.5 or later. Version 2.2.5 addresses this vulnerability and is available from the WordPress Plugin Repository.
  • If immediate patching is not possible: Temporarily deactivate the miniOrange Discord Integration plugin to eliminate the exposed authentication attack surface until the update can be applied.

IONIX Status

The IONIX research team is tracking ongoing exploitation attempts and recommends immediate patching. Potentially affected assets are outlined in this post.

References

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Map your entire attack surface (continously)

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