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CVE-2026-6443 - Vulnerability Analysis

CriticalCVSS: 9.8

Last Updated: April 17, 2026

Accordion and Accordion Slider WordPress Plugin - Backdoor

Published: April 17, 2026Updated: April 17, 2026Remote Exploitable

Overview

Accordion and Accordion Slider WordPress plugin 1.4.6 contains a backdoor caused by malicious code injection by a threat actor, letting attackers maintain persistent access and inject spam, exploit requires plugin installation.

Severity & Score

Severity: Critical
CVSS Score: 9.8

Impact

Attackers can maintain persistent access and inject spam, compromising site integrity and availability.

Mitigation

Update to the latest version or remove the compromised plugin.

Details

CVE ID
CVE-2026-6443
Severity
Critical
CVSS Score
9.8
Type
undefined
Status
new

CWE

  • CWE-506

CVSS Metrics

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H