CVE-2025-4390
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 Private Content Plus plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 3.6.2 via the 'validate_restrictions' function. This makes it possible for unauthenticated attackers to extract sensitive data including the content of resticted posts on archive and feed pages.
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 confidenceThe WP Private Content Plus WordPress plugin has a sensitive information exposure vulnerability in the 'validate_restrictions' function affecting all versions up to 3.6.2. This function fails to properly enforce access controls, allowing unauthenticated attackers to view restricted post content through archive and feed pages by bypassing the intended privacy restrictions.
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
- Low
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
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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Confirm plugin is installedLog into WordPress admin dashboard and navigate to Plugins > Installed Plugins. Look for 'WP Private Content Plus' in the list. Alternatively, check the plugins directory (wp-content/plugins/) for a folder named 'wp-private-content-plus' or similar.Affected if The plugin is installed and active
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Identify installed versionIn the WordPress admin Plugins page, locate WP Private Content Plus and view the version number displayed beneath the plugin name. Alternatively, open the main plugin PHP file (typically wp-private-content-plus.php or similar in the plugin folder) and look for the 'Version:' header comment in the file metadata.Affected if Version is 3.6.2 or lower (any version up to 3.6.2)
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Test feed page access to restricted contentOpen a web browser and attempt to access your site's RSS feed URL (typically /feed/ or /?feed=rss2). Look for posts that should be restricted or private. Compare the feed output against what restricted users should see. Check if restricted post titles, excerpts, or full content appear in the public feed.Affected if Restricted or private post content is visible in the public feed when it should not be
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Test archive page access to restricted contentVisit archive URLs such as /2025/, /2025/05/, /author/username/, or category/archive pages. Check if posts that are marked as restricted or private in the plugin settings are displayed to unauthenticated (logged-out) visitors.Affected if Restricted post content is visible to unauthenticated users on archive pages
If the plugin version is 3.6.2 or lower AND restricted content is visible in public feed or archive pages without authentication, the environment is affected by this vulnerability.
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.
From vendor dataUpdate the WP Private Content Plus plugin to version 3.6.3 or later if available, which should contain a patch for this vulnerability. Until an update is available, review and harden the validate_restrictions function to ensure proper authentication and authorization checks are enforced on all archive and feed page requests.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2025-4390 — 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-2025-4390 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