CVE-2026-39561
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 · uneditedMissing Authorization vulnerability in WP Chill Revive.so revive-so allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Revive.so: from n/a through <= 2.0.7.
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 confidenceThis is a missing authorization vulnerability in the Revive.so WordPress plugin (versions <= 2.0.7). The plugin fails to properly enforce access control checks, allowing attackers to exploit incorrectly configured security levels and potentially access functionality that should require authentication or higher privileges.
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
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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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Check installed Revive.so plugin versionNavigate to WordPress admin > Plugins > Installed Plugins > Revive.so and view the version number, or inspect the plugin header in wp-content/plugins/revive-so/ folder for the 'Version' fieldAffected if Version number is 2.0.7 or lower
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Identify AJAX endpoints in the pluginReview the plugin PHP files for registered WordPress AJAX actions (add_action('wp_ajax_...') and add_action('wp_ajax_nopriv_...')), particularly in main plugin file or ajax/ folderAffected if Endpoints are registered without capability checks (no current_user_capability() or nonce validation before processing)
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Examine hook permission callbacksSearch plugin code for sensitive hooks (admin_menu, manage_options, update_core, etc.) and check if they include permission callback functions that verify user capabilitiesAffected if Hooks lack permission callbacks or use permissive capability checks (like 'read' instead of 'manage_options' for administrative actions)
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Review nonce validation on AJAX handlersInspect AJAX action handlers for wp_verify_nonce() or check_admin_referer() calls before executing sensitive operationsAffected if AJAX endpoints process requests without nonce verification, allowing CSRF attacks
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Test unauthenticated access to protected functionsIf possible, attempt to access suspected AJAX endpoints as a non-logged-in user or low-privilege user (wp_ajax_nopriv_ endpoint exists and processes without capability verification)Affected if Sensitive actions execute successfully without proper authorization
User is affected if Revive.so plugin version is 2.0.7 or lower AND AJAX endpoints or admin hooks lack proper capability checks and nonce validation.
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 dataImplement proper authorization checks (capability checks and nonce verification) on all sensitive functions and AJAX endpoints to ensure users have appropriate permissions before executing actions.
- Consultation2.0 h
- Implementation4.0 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 $2,560.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-39561 — 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-2026-39561 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
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