What the vulnerability does
01Description
The Linksy Search and Replace plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'linksy_search_and_replace_item_details' function in all versions up to, and including, 1.0.4. This makes it possible for authenticated attackers, with subscriber-level access and above, to update any database table, any value, including the wp_capabilities database field, which allows attackers to change their own role to administrator, which leads to privilege escalation.
Explanation of Vulnerability in Simple Terms
02Summary
Linksy Search and Replace versions 1.0.4 and earlier lack proper authorization checks, allowing authenticated users with low privileges to read, modify, or delete data they should not access. An attacker with a basic user account can perform administrative actions without restriction. This affects all data confidentiality, integrity, and availability on the site.
What an attacker can do
03Attacker Capabilities
Read, modify, or delete any site data without proper authorization checks.
Potential impact on your site
04Site Impact
Any logged-in user can access and alter sensitive site content and settings, compromising data integrity and availability.
Conditions required to exploit
05Prerequisites
Attacker needs a low-privilege user account on the site; no additional user interaction required.
Key dates
06Disclosure timeline
March 21, 2026
CVE published
April 8, 2026
Record updated
