Authorization Bypass in Kiwi Social Share Plugin for WordPress
CVE-2021-4362

9.8CRITICAL

Key Information:

Vendor

Wordpress
Status
Social Sharing Plugin – Kiwi
Vendor
CVE Published:
7 June 2023

What is CVE-2021-4362?

The Kiwi Social Share plugin for WordPress has a serious authorization bypass flaw stemming from a missing capability check in its AJAX action, specifically in the kiwi_social_share_get_option() function. This vulnerability allows unauthenticated attackers to both read and modify arbitrary options on a WordPress site. Such exploitation can lead to significant risks, including complete site takeover. Alarmingly, this vulnerability was previously addressed but has resurfaced in version 2.1.0 of the plugin, requiring immediate attention from site administrators.

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Deploy the Patch

Affected Version(s)

Social Sharing Plugin – Kiwi 2.1.0 <= 2.1.2

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://blog.nintechnet.com/wordpress-kiwi-social-sharing...
https://wordpress.org/plugins/kiwi-social-share/#developers

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Jerome Bruandet
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