CVE-2025-11533
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 · uneditedThe WP Freeio plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 1.2.21. This is due to the process_register() function not restricting what user roles a user can register with. This makes it possible for unauthenticated attackers to supply the 'administrator' role during registration and gain administrator access to the site.
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 · high confidenceThe WP Freeio WordPress plugin up to version 1.2.21 contains a privilege escalation vulnerability in its process_register() function. The function allows unauthenticated users to specify any user role during registration, including the 'administrator' role, enabling attackers to create admin-level accounts and fully compromise the site.
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
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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 checksWork through these to decide whether this CVE applies to you.
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Identify WP Freeio plugin versionNavigate to WordPress Admin > Plugins and locate WP Freeio in the plugin list, or inspect the version in the plugin's main PHP file at /wp-content/plugins/freeio/Affected if The installed version is 1.2.21 or lower
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Verify WordPress user registration is enabledGo to WordPress Settings > General and check if 'Anyone can register' is ticked and a default user role is setAffected if User registration is enabled with any default role selected
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Inspect user accounts for unauthorized administratorsNavigate to WordPress Admin > Users and review all accounts with the Administrator role, noting the email addresses and registration datesAffected if There are admin accounts you did not create, especially with recent registration dates or unfamiliar email addresses
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Check for vulnerable registration endpoint exposureInspect the site for registration-related AJAX endpoints or forms that invoke the process_register() function, typically found in freeio/includes/ajax-register.php or similar filesAffected if The registration process allows role parameter submission without server-side role validation
You are affected if WP Freeio version 1.2.21 or lower is installed, user registration is enabled, and the plugin's process_register() function permits role assignment without restricting to non-administrative roles.
Generated from the published advisory. Verify against your own configuration.
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.
dbcve · scopedUpdate the WP Freeio plugin to a version beyond 1.2.21, or implement role restrictions in the process_register() function to whitelist only permitted user roles and reject administrator role assignment during registration.
WP Freeio version 1.2.22 or later
- Navigate to WordPress admin dashboard > Plugins > Installed Plugins
- Locate WP Freeio plugin
- If the current version is 1.2.21 or lower, update the plugin to the latest available version
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation2.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,984.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-11533 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-11533 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- 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
- No spam, self-promotion, credentials, or personal data