What is the severity of CVE-2023-3956?

CVE-2023-3956 is considered to be of high severity due to the potential for unauthorized access and data modification.

How do I fix CVE-2023-3956?

To remediate CVE-2023-3956, update the InstaWP Connect plugin to version 0.0.9.19 or later.

Who is affected by CVE-2023-3956?

Users of the InstaWP Connect plugin for WordPress versions up to and including 0.0.9.18 are affected by CVE-2023-3956.

What types of attacks are possible with CVE-2023-3956?

CVE-2023-3956 allows unauthenticated attackers to add, modify, or delete data due to a lack of proper capability checks.

Is CVE-2023-3956 a WordPress core issue?

No, CVE-2023-3956 is specific to the InstaWP Connect plugin and not a vulnerability in the WordPress core itself.

Vulnerability/
CVE-2023-3956

critical

9.8

CWE

862

27/7/2023

5/2/2025

CVE-2023-3956

First published: Thu Jul 27 2023(Updated: )

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.

Credit: security@wordfence.com

Affected Software	Affected Version	How to fix
InstaWP Connect	<=0.0.9.18

Remedy

https://plugins.trac.wordpress.org/browser/instawp-connect/tags/0.0.9.18/includes/class-instawp-rest-apis.php#L103

Remedy

https://plugins.trac.wordpress.org/changeset/2942363/instawp-connect#file5

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Reference Links

Frequently Asked Questions

What is the severity of CVE-2023-3956?
CVE-2023-3956 is considered to be of high severity due to the potential for unauthorized access and data modification.
How do I fix CVE-2023-3956?
To remediate CVE-2023-3956, update the InstaWP Connect plugin to version 0.0.9.19 or later.
Who is affected by CVE-2023-3956?
Users of the InstaWP Connect plugin for WordPress versions up to and including 0.0.9.18 are affected by CVE-2023-3956.
What types of attacks are possible with CVE-2023-3956?
CVE-2023-3956 allows unauthenticated attackers to add, modify, or delete data due to a lack of proper capability checks.
Is CVE-2023-3956 a WordPress core issue?
No, CVE-2023-3956 is specific to the InstaWP Connect plugin and not a vulnerability in the WordPress core itself.

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agent/references
agent/weakness
agent/event
agent/description
agent/first-publish-date
agent/source
agent/tags
collector/nvd-api
agent/software-canonical-lookup-request
collector/nvd-index
collector/nvd-latest
vendor/instawp
canonical/instawp connect
version/instawp connect/0.0.9.18

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