Vulnerability in Essentialplugin Accordion And Slider

CVE-2026-6443

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 m…

EPSS: 0.000 (6.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-6443?
CVE-2026-6443 is a critical-severity vulnerability in Essentialplugin Accordion And Slider, classified under CWE-506. CVSS score: 9.8/10. Published 2026-04-17.
How severe is CVE-2026-6443?
Critical severity. CVSS v3 base score is 9.8 out of 10.