Vulnerability · Published Jun 5, 2024 · Assigned by Wordfence

CVE-2024-5439Blocksy <= 2.0.50 - Authenticated (Contributor+) Stored Cross-Site Scripting

Medium 6.4

In plain English

A medium-severity improper input validation in Blocksy from creativethemeshq. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 21% of all known vulnerabilities).

Severity (CVSS 3.1)6.4Medium
Exploit odds (30 days)0.3%top 78.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

The Blocksy theme for WordPress is vulnerable to Reflected Cross-Site Scripting via the custom_url parameter in all versions up to, and including, 2.0.50 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

Affected products (as reported)

VendorProductVersions
creativethemeshq Blocksy 0 – through 2.0.50

Weakness: CWE-20 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

References