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Vulnerability record · CVE-2023-3956 · published 27 July 2023

CVE-2023-3956: Instawp connect missing authorization vulnerability

Instawp · Instawp Connect

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.

9.8 CVSS 3.1 Critical EPSS 0.97% · top 39.8% CWE-862 · Missing authorization
9.8CVSS 3.1 base score
0.97%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

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

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://plugins.trac.wordpress.org/browser/instawp-connect/tags/0.0.9.18/includes/class-instawp-rest-apis.php#L103 Patch
https://plugins.trac.wordpress.org/changeset/2942363/instawp-connect#file5 Patch
https://www.wordfence.com/threat-intel/vulnerabilities/id/48e7acf2-61d4-4762-8657-0701910ce69b?source=cve Third Party Advisory
https://plugins.trac.wordpress.org/browser/instawp-connect/tags/0.0.9.18/includes/class-instawp-rest-apis.php#L103 Patch
https://plugins.trac.wordpress.org/changeset/2942363/instawp-connect#file5 Patch
https://www.wordfence.com/threat-intel/vulnerabilities/id/48e7acf2-61d4-4762-8657-0701910ce69b?source=cve Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2024-6397Instawp connect authentication bypass via alternate path vulnerabilityThe InstaWP Connect – 1-click WP Staging & Migration plugin for WordPress is vulnerable to authentication bypass in all versions up to, and including…EPSS 0.70%9.8CVE-2024-37228Instawp connect unrestricted file upload vulnerabilityUnrestricted Upload of File with Dangerous Type vulnerability in InstaWP InstaWP Connect instawp-connect.This issue affects InstaWP Connect: from n/a…EPSS 0.53%9.8CVE-2024-4898Instawp connect missing authorization vulnerabilityThe InstaWP Connect – 1-click WP Staging & Migration plugin for WordPress is vulnerable to arbitrary option updates due to a missing authorization ch…EPSS 4.2%9.8CVE-2024-2667Instawp connect unrestricted file upload vulnerabilityThe InstaWP Connect – 1-click WP Staging & Migration plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient file validation…EPSS 5.8%8.8CVE-2024-32701Instawp connect missing authorization vulnerabilityMissing Authorization vulnerability in InstaWP InstaWP Connect instawp-connect.This issue affects InstaWP Connect: from n/a through <= 0.1.0.24.EPSS 0.33%8.8CVE-2024-22145Instawp connect improper privilege management vulnerabilityIncorrect Privilege Assignment vulnerability in InstaWP InstaWP Connect instawp-connect.This issue affects InstaWP Connect: from n/a through <= 0.1.0…EPSS 1.1%8.8CVE-2024-25918Instawp connect code injection vulnerabilityImproper Control of Generation of Code ('Code Injection') vulnerability in InstaWP InstaWP Connect instawp-connect.This issue affects InstaWP Connect…EPSS 0.68%8.8CVE-2024-23507Instawp connect sql injection vulnerabilityImproper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in InstaWP InstaWP Connect instawp-connect.This is…EPSS 0.62%

Source: NIST National Vulnerability Database (record CVE-2023-3956), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.