CVE Catalog

CVE-2026-4080

MediumCVSS 6.4
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.24%

16th percentile - higher than 16% of all known CVEs

Summary

The Easy Cart plugin for WordPress up to version 1.8 has a Stored XSS vulnerability via the 'add_to_cart' shortcode. The sanitize_text_field() function does not escape double quotes in attributes, allowing authenticated users (Contributor+) to inject scripts.

Risk Assessment

An attacker can inject malicious scripts that execute on every visit to the infected page, potentially leading to session theft or redirects.

Recommendation

Update the Easy Cart plugin to the latest version. Temporarily remove the 'add_to_cart' shortcode from content if possible.

Related vulnerabilities

Original NVD description (English source)

The Easy Cart plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'add_to_cart' shortcode in all versions up to and including 1.8. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes. Specifically, the ectp_add_to_cart() function uses sanitize_text_field() on shortcode attributes like 'itemid', 'product_name', 'product_desc', 'product_qty', and 'price' before inserting them into double-quoted HTML attributes. While sanitize_text_field() strips HTML tags, it does not escape double quote characters, allowing an attacker to break out of the HTML attribute context and inject arbitrary event handlers. 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 data from NVD (NIST) · CISA KEV · EPSS