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CVE-2026-6443

Accordion and Accordion Slider 1.4.6 - Injected Backdoor

Published: Apr 17, 2026Updated: Apr 17, 2026 Sources: CVE List NVD
NVD MITRE
9.8CVSS
CRITICAL

The Accordion and Accordion Slider plugin for WordPress is vulnerable to an injected backdoor in version 1.4.6. 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.

EPSS Score
N/A
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High

Weaknesses

CWE-506

Affected Products

Accordion and Accordion Slider
essentialplugin

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/2597724a-9a39-4e46-b153-f42366f833ba?source=cve
wordfence.com
https://anchor.host/someone-bought-30-wordpress-plugins-and-planted-a-backdoor-in-all-of-them/
anchor.host

Timeline

Published
Apr 17, 2026
Last Updated
Apr 17, 2026

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