dbcve.org
Missing AuthorizationWeakness · CWE-862

CVE-2025-30817

MEDIUM · 5.4 CVSS v3.1 Published 2025-03-27
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
60/100
Remediation priority · Elevated
Remotely reachable 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 wpzita Z Companion z-companion allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Z Companion: from n/a through <= 1.0.13.

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 the wpzita Z Companion WordPress plugin allows unauthenticated or improperly authenticated users to access certain functionality due to incorrectly configured access control security levels. The specific vulnerable endpoints or functions are not detailed in the available information, but the issue enables bypassing intended authorization checks.

MitigationUpdate Z Companion plugin to the latest version once available; if no patch exists, implement web application firewall rules or temporarily disable the plugin until remediation is possible.

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
Low
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
Low

CVSS:3.1/AV:N/AC:L/PR:L/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. Identify if Z Companion plugin is installed
    In WordPress admin, go to Plugins > Installed Plugins and search for 'Z Companion' or 'wpzita'. Alternatively, check the /wp-content/plugins/ directory for a folder named 'z-companion' or similar.
    Affected if The Z Companion plugin by wpzita is found in the WordPress installation
  2. Determine the installed plugin version
    In WordPress admin, click on the plugin from the Installed Plugins list to view its version number. If not visible in admin, check the main plugin PHP file header for 'Version:' comment, or inspect the plugin folder via file manager or FTP.
    Affected if A version of the Z Companion plugin is installed and the specific vulnerable version cannot be determined from available advisory data
  3. Review WordPress user accounts for unauthorized admin access
    Navigate to Users > All Users in WordPress admin panel. Check for any unfamiliar user accounts with Administrator role, especially those created without your knowledge. Note the user count and account creation dates.
    Affected if Unexpected admin-level user accounts exist that were not created by legitimate administrators
  4. Audit user capabilities for privilege escalation signs
    Use a security plugin or manually inspect wp_usermeta table for users with capabilities beyond their intended role. Check for subscribers or contributors with manage_options, edit_users, or other administrative capabilities.
    Affected if Users possess capabilities inconsistent with their assigned role, indicating potential authorization bypass exploitation
  5. Check for suspicious plugin-induced functionality
    Monitor server access logs for unusual POST/GET requests to wp-admin/admin-ajax.php or wp-json/wp/v2/ endpoints that may indicate unauthorized plugin function access. Review any recently modified files in the plugin directory.
    Affected if Network requests or file modifications suggest unauthorized access to plugin functions that should require higher privileges

The environment is likely affected if the wpzita Z Companion plugin is installed and unauthorized users have gained elevated access or capabilities beyond what the plugin's authorization should permit.

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 Z Companion plugin to the latest version once available; if no patch exists, implement web application firewall rules or temporarily disable the plugin until remediation is possible.

Have this fixed Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing3.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,490
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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-2025-30817 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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