Backdoor Vulnerability in Accordion and Accordion Slider Plugin for WordPress
CVE-2026-6443

9.8CRITICAL

Key Information:

Vendor

WordPress
Status
Accordion And Accordion Slider
Vendor
CVE Published:
17 April 2026

What is CVE-2026-6443?

The Accordion and Accordion Slider plugin for WordPress is compromised due to an embedded backdoor in version 1.4.6. After being sold to a malicious actor, the plugin's code became infiltrated, enabling the user to maintain ongoing unauthorized access. This vulnerability poses a severe risk, allowing for spam injection and potential exploitation of affected websites. Site administrators are urged to take immediate action to secure their installations.

Affected Version(s)

Accordion and Accordion Slider 1.4.6

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://anchor.host/someone-bought-30-wordpress-plugins-a...

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

Eu Joe Chegne
Damien
.