What is CVE-2024-11420?

CVE-2024-11420 is a medium-severity vulnerability in Creativethemes Blocksy, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2024-12-05.

How severe is CVE-2024-11420?

Medium severity. CVSS v3 base score is 6.4 out of 10.

XSS in Creativethemes Blocksy

CVE-2024-11420

The Blocksy theme for WordPress is vulnerable to Stored Cross-Site Scripting via the Contact Info Block link parameter in all versions up to, and including, 2.0.77 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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (16.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.

Affected products

Creativethemes Blocksy
Creativethemeshq Blocksy — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security@wordfence.com (Third Party Advisory)
security@wordfence.com (Patch)

Frequently asked questions

What is CVE-2024-11420?: CVE-2024-11420 is a medium-severity vulnerability in Creativethemes Blocksy, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2024-12-05.
How severe is CVE-2024-11420?: Medium severity. CVSS v3 base score is 6.4 out of 10.