What the vulnerability does
01Description
The Comment SPAM Wiper plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'API Key' setting in all versions up to, and including, 1.2.1. This is due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
Explanation of Vulnerability in Simple Terms
02Summary
Comment SPAM Wiper versions 1.2.1 and earlier contain a cross-site scripting (XSS) vulnerability that allows high-privilege users to inject malicious scripts affecting other users or the site. The vulnerability requires high attack complexity and high privileges to exploit. Impact is limited to low-level confidentiality and integrity compromise.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that execute in other users' browsers or affect site functionality.
Potential impact on your site
04Site Impact
A high-privilege user could inject scripts affecting other administrators or site visitors, potentially compromising accounts or data.
Conditions required to exploit
05Prerequisites
Attacker must have high-level administrative privileges and the attack requires specific conditions to succeed.
Key dates
06Disclosure timeline
March 21, 2026
CVE published
April 8, 2026
Record updated
