Redirect ManagerWordPress extension · Premmerce

CVE-2023-23787

HIGH · 8.8 CVSS v3.1 Published 2023-07-10
Fix available
A fix is available. Upgrade to after 1.0.9 or later.
See remediation →
95/100
Remediation priority · Urgent
Remotely reachable No privileges

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
Cross-Site Request Forgery (CSRF) vulnerability in Premmerce Premmerce Redirect Manager plugin <= 1.0.9 versions.

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

Cross-Site Request Forgery (CSRF) vulnerability in Premmerce Redirect Manager plugin for WordPress versions 1.0.9 and below. The lack of anti-CSRF tokens on state-changing operations (likely redirect creation/modification/deletion) allows attackers to trick authenticated administrators into performing unintended actions.

MitigationImplement WordPress nonces (nonce tokens) on all form submissions and AJAX requests that modify redirects, and verify the nonce validity server-side before executing any state-changing operation. Update to a patched version if available.

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

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Redirect ManagerWordPress extension
Affected:<= 1.0.9

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
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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 checks

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

  1. Confirm Premmerce Redirect Manager is installed
    Navigate to WordPress Admin > Plugins or check the filesystem at wp-content/plugins/ for a directory named 'premmerce-redirect-manager' or similar premmerce prefix.
    Affected if The plugin directory exists in the WordPress installation
  2. Identify the installed plugin version
    Open the main plugin PHP file (usually premmerce-redirect-manager.php) and locate the Version header in the plugin comment block, or check the version in the WordPress Plugins admin page.
    Affected if The reported version is 1.0.9 or lower (e.g., 1.0.8, 1.0.7, etc.)
  3. Locate state-changing functionality in plugin code
    Search the plugin directory for files handling redirect operations - look for terms like 'create_redirect', 'update_redirect', 'delete_redirect', 'add_redirect', or form handlers in admin menu pages.
    Affected if Files exist that process redirect creation, modification, or deletion requests
  4. Inspect redirect handlers for missing nonce verification
    Open the identified redirect handler files and search for absence of WordPress nonce functions: wp_nonce_field, check_admin_referer, wp_verify_nonce, or verify_nonce. Check form submission handlers and AJAX action callbacks.
    Affected if State-changing functions (redirect add/edit/delete) lack nonce verification calls like check_admin_referer() or wp_verify_nonce()
  5. Verify admin access to redirect management interface
    Log into WordPress admin as an administrator and navigate to the Premmerce Redirect Manager menu (typically under Tools or a dedicated menu item) to confirm the redirect management UI is accessible.
    Affected if The redirect management interface is accessible to authenticated administrators

Your environment is affected if the Premmerce Redirect Manager plugin is installed with version 1.0.9 or lower and the code handling redirect operations lacks WordPress nonce verification on form submissions or AJAX requests.

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.

dbcve · scoped
Upgrade available Upgrade to a release after 1.0.9
Interim mitigation

Implement WordPress nonces (nonce tokens) on all form submissions and AJAX requests that modify redirects, and verify the nonce validity server-side before executing any state-changing operation. Update to a patched version if available.

Recommended fix Moderate confidence

Version 1.1.0 or later (the first version after 1.0.9)

  1. 1. Log in to the WordPress admin dashboard
  2. 2. Navigate to Plugins > Installed Plugins
  3. 3. Locate the Premmerce Redirect Manager plugin
  4. 4. Check if an update is available and update to the latest version
  5. 5. If no update is available through WordPress, download the latest version from the WordPress plugin repository or contact Premmerce support
  6. 6. Verify the update was successful and test the redirect functionality

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Redirect Manager Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing4.0 h
  • Review / QA2.0 h
15.0 hours of engineering $2,640
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,224.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

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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-2023-23787 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
  • No spam, self-promotion, credentials, or personal data