CVE-2023-3956: critical vulnerability in InstaWP Connect – 1-click WP Staging & Migration
InstaWP Connect <= 0.0.9.18 - Missing Authorization to Unauthenticated Post/Taxonomy/User Add/Change/Delete, Customizer Setting Change, Plugin Installation/Activation/Deactication via events_receiver
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.8epss 1.0%
The InstaWP Connect plugin for WordPress is vulnerable to unauthorized access of data, modification of data and loss of data due to a missing capability check on the 'events_receiver' function in versions up to, and including, 0.0.9.18. This makes it possible for unauthenticated attackers to add, modify or delete post and taxonomy, install, activate or deactivate plugin, change customizer settings, add or modify or delete user including administrator user.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
instawp · InstaWP Connect – 1-click WP Staging & MigrationRelated CVEs — InstaWP Connect – 1-click WP Staging & Migration
In the same product, most dangerous first.
CVE-2025-2636HIGHInstaWP Connect <= 0.1.0.85 - Unauthenticated Local PHP File InclusionEPSS 10.6%CVE-2024-2667CRITICALInstaWP Connect – 1-click WP Staging & Migration <= 0.1.0.22 - Unauthenticated Arbitrary File UploadEPSS 5.7%CVE-2024-4898CRITICALInstaWP Connect – 1-click WP Staging & Migration <= 0.1.0.38 - Missing Authorization to Unauthenticated API setup/Arbitrary Options Update/Administrative User CreationEPSS 4.2%CVE-2024-13913HIGHInstaWP Connect – 1-click WP Staging & Migration <= 0.1.0.83 - Cross-Site Request Forgery to Local File InclusionEPSS 2.7%CVE-2026-13457HIGHInstaWP Connect <= 0.1.3.6 - Unauthenticated Cryptographic Key DisclosureEPSS 0.9%CVE-2024-6397CRITICALInstaWP Connect – 1-click WP Staging & Migration <= 0.1.0.44 - Authentication Bypass to AdminEPSS 0.7%
References
https://plugins.trac.wordpress.org/browser/instawp-connect/tags/0.0.9.18/includes/class-instawp-rest-apis.php#L103https://plugins.trac.wordpress.org/changeset/2942363/instawp-connect#file5https://www.wordfence.com/threat-intel/vulnerabilities/id/48e7acf2-61d4-4762-8657-0701910ce69b?source=cve