CVE-2024-3747

MEDIUM

Blocksy <= 2.0.39 - Authenticated Stored Cross-Site Scripting via About Me Block className Parameter

Title source: llm

Description

The Blocksy theme for WordPress is vulnerable to Stored Cross-Site Scripting via the className parameter in the About Me block in all versions up to, and including, 2.0.39 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

References (2)

Core 2

Core References

Patch

https://themes.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=224954%40blocksy%2F2.0.40&old=224210%40blocksy%2F2.0.39

Third Party Advisory

https://www.wordfence.com/threat-intel/vulnerabilities/id/e3f71928-3f1d-4c15-8655-41cdfb707370?source=cve

Scores

CVSS v3 6.4

EPSS 0.0042

EPSS Percentile 33.9%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-20 CWE-79

Status published

Products (2)

creativethemes/blocksy < 2.0.40

creativethemeshq/Blocksy < 2.0.39

Published May 02, 2024

Tracked Since Feb 18, 2026