AUGUST 4, 2026
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Case File

CVE-2026-3998

MEDIUM · CVSS 6.4 EPSS 0.27%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2026-04-15 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 6.4. It affects WordPress. Exploitation may require the attacker to be authenticated.

CVE
CVE-2026-3998
Severity
MEDIUM
CVSS
6.4
EPSS
0.27%
WordPress

Original NVD Description

The WM JqMath plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'style' shortcode attribute of the [jqmath] shortcode in all versions up to and including 1.3. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes. The generate_jqMathFormula() function directly concatenates the 'style' attribute value into an HTML style attribute without applying esc_attr() or any other escaping. 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.