CVE Catalog

CVE-2026-110290

MediumCVSS 6.4
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.21%

10th percentile - higher than 10% of all known CVEs

Summary

The WebberZone Top 10 – Popular Posts plugin for WordPress (versions up to and including 4.5.2) is vulnerable to Stored Cross-Site Scripting via the 'other_attributes' parameter (parsed to inject instance_id) and undeclared 'is_widget' due to insufficient input sanitization and output escaping. An authenticated attacker with contributor-level access can inject scripts that execute when a user visits the injected page.

Risk Assessment

An attacker with a contributor account can inject malicious scripts, potentially leading to session data theft or actions on behalf of visitors.

Recommendation

Update the WebberZone Top 10 plugin to a version newer than 4.5.2 and restrict contributor privileges.

Related vulnerabilities

Original NVD description (English source)

The WebberZone Top 10 — Popular Posts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'other_attributes (parsed to inject instance_id) + undeclared is_widget' parameter in all versions up to, and including, 4.5.2 due to insufficient input sanitization and output 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. The exploit requires setting the undeclared is_widget flag to '1' via block JSON, which activates the vulnerable code path that concatenates the attacker-controlled instance_id value into an unescaped HTML class attribute.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS