What is CVE-2026-0867?

CVE-2026-0867 is a medium-severity vulnerability in Catchthemes Essential Widgets, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-02-05.

How severe is CVE-2026-0867?

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

XSS in Catchthemes Essential Widgets

CVE-2026-0867

The Essential Widgets plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's ew-author, ew-archive, ew-category, ew-page, and ew-menu shortcodes in all versions up to, and including, 3.0 due to insufficient input sanitization and output escaping on user supplied attributes. 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. NOTE: This vulnerability was partially fixed in version 3.0.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.003 (20.1th 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

Catchthemes Essential Widgets — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2026-0867?: CVE-2026-0867 is a medium-severity vulnerability in Catchthemes Essential Widgets, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-02-05.
How severe is CVE-2026-0867?: Medium severity. CVSS v3 base score is 6.4 out of 10.