What the vulnerability does
01Description
All plugins by Essentialplugin for WordPress are vulnerable to an injected backdoor in various versions. This is due to the plugin being sold to a malicious threat actor that embedded a backdoor in all of the plugin's they acquired. This makes it possible for the threat actor to maintain a persistent backdoor and inject spam into the affected sites.
Explanation of Vulnerability in Simple Terms
02Summary
Accordion and Accordion Slider versions 1.4.6 and earlier contain a vulnerability that allows unauthenticated attackers to read sensitive data, modify site content, or disrupt service without user interaction. The vulnerability is exploitable over the network with low complexity. No patch version is currently available.
What an attacker can do
03Attacker Capabilities
Read sensitive data, modify site content, or disrupt service without authentication.
Potential impact on your site
04Site Impact
Attackers can compromise your site's data, content, and availability without needing a user account.
Conditions required to exploit
05Prerequisites
Network access only; no authentication or user interaction required.
Key dates
06Disclosure timeline
April 17, 2026
CVE published
April 21, 2026
Record updated