dbcve.org
Missing AuthorizationWeakness · CWE-862

CVE-2023-37987

MEDIUM · 6.5 CVSS v3.1 Published 2024-12-13
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
74/100
Remediation priority · Elevated
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Missing Authorization vulnerability in miniOrange YourMembership Single Sign On allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects YourMembership Single Sign On: from n/a through 1.1.3.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

Missing Authorization vulnerability in miniOrange YourMembership Single Sign On plugin allows authenticated attackers to exploit incorrectly configured Access Control Security Levels. This broken access control issue enables users to access functionality or resources beyond their intended privilege level in the SSO authentication flow.

MitigationUpdate to the latest version of the YourMembership SSO plugin (beyond 1.1.3) which contains proper authorization checks. If no patch available, restrict administrative access to the plugin settings and consider deploying a WAF rule to detect abnormal access patterns.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
Low

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Locate the miniOrange YourMembership SSO plugin
    Check the WordPress plugins directory (wp-content/plugins/) for a folder named 'miniorange-ym-sso' or similar. Alternatively, query the WordPress database in the 'wp_options' table for option_name containing 'miniorange' and 'ym_sso' to confirm the plugin is active.
    Affected if The plugin folder or database record exists and is active on the site.
  2. Determine the installed plugin version
    Open the main plugin file (usually miniorange-ym-sso.php) and look for the version comment header (e.g., 'Version: x.x.x'). Alternatively, check the readme.txt file in the plugin folder for the 'Stable tag' or version entry.
    Affected if The version is 1.1.3 or any version prior to the patched release.
  3. Inspect Access Control Security Level settings
    Navigate to the plugin settings page in the WordPress admin dashboard under 'miniOrange SSO -> YourMembership SSO -> SSO Settings' or similar. Look for a setting labeled 'Security Level', 'Access Control', 'Role Based Access', or 'Authorization Level' that controls which user roles can access specific SSO functions.
    Affected if The Security Level setting is configured to a value that allows lower-privileged users (such as subscribers or contributors) to access administrative or elevated SSO functions, or if the setting is present but enforces no role restrictions.
  4. Verify authorization enforcement on SSO endpoints
    Use a low-privilege user account (e.g., a subscriber-level user) to attempt access to SSO configuration endpoints or trigger SSO actions that should be restricted to administrators. Inspect the plugin's PHP files for capability checks (e.g., 'manage_options', 'edit_users') before executing sensitive SSO functions.
    Affected if Low-privilege authenticated users can successfully access or modify SSO settings, initiate SP-initiated SSO requests, or retrieve user data without proper capability verification.

A site is affected if the miniOrange YourMembership SSO plugin is installed at version 1.1.3 or earlier AND the Access Control Security Level configuration permits authenticated users with lower privileges to access administrative or elevated SSO functionality.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Update to the latest version of the YourMembership SSO plugin (beyond 1.1.3) which contains proper authorization checks. If no patch available, restrict administrative access to the plugin settings and consider deploying a WAF rule to detect abnormal access patterns.

Have this fixed Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing3.0 h
  • Review / QA1.0 h
10.0 hours of engineering $1,750
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2023-37987 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
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