What is CVE-2026-4077?

CVE-2026-4077 is a medium-severity vulnerability in Miguelmartinezlopez Ecover Builder For Dummies, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-03-21.

How severe is CVE-2026-4077?

Medium severity. CVSS v3 base score is 6.4 out of 10.

XSS in Miguelmartinezlopez Ecover Builder For Dummies

CVE-2026-4077

The Ecover Builder For Dummies plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'id' parameter of the 'ecover' shortcode in all versions up to and including 1.0. This is due to insufficient input sanitization and output escaping on the user-supplied 'id' shortcode attribute. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (10.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.

Affected products

Miguelmartinezlopez Ecover Builder For Dummies — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2026-4077?: CVE-2026-4077 is a medium-severity vulnerability in Miguelmartinezlopez Ecover Builder For Dummies, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-03-21.
How severe is CVE-2026-4077?: Medium severity. CVSS v3 base score is 6.4 out of 10.