CVE Watch16 oct 2026

CVE-2026-110290

The WebberZone Top 10 — Popular Posts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'other_attributes (parsed to

CVSS

6.4

Medio

EPSS

0.2%

p10

KEV

—

Exploit Today

0-100

Publicado: 16 oct 2026 · Última mod.: 16 oct 2026 · CWE-79

EPSS · 30d

0.2%EPSS · 30 días0.2%

2026-10-162026-10-20

Descripción técnica

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.

Referencias oficiales

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