CVE-2024-5439

MEDIUM 6.4

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

CVSS Score

6.4

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-20
Vendor	creativethemeshq
Product	blocksy
Published	Jun 5, 2024
Last Updated	Apr 8, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

creativethemeshq / Blocksy

0 ≤ 2.0.50

References

NVD ↗ CVE.org ↗ EPSS Data ↗

wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/c05687f4-5ea2-4226-982f-c3499f204685?source=cve themes.trac.wordpress.org: https://themes.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=229705%40blocksy%2F2.0.51&old=228990%40blocksy%2F2.0.50

Credits

Ngô Thiên An