What’s Vulnerable › Vulnerabilities

CVE-2024-3563: Genesis Blocks <= 3.1.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via Sharing Block Attributes

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-07-09 · updated 2026-06-17
• Weakness: CWE-79

Description

The Genesis Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's Sharing block in all versions up to, and including, 3.1.3 due to insufficient input sanitization and output escaping on user supplied attributes. 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. CVE-2024-3901 is a duplicate of this issue.

Affected products

• Genesis Blocks: before 3.1.4 — fixed in 3.1.4

How to fix

Upgrade to a fixed version: Genesis Blocks 3.1.4. Check the vendor advisory for mitigations.

References

• https://plugins.trac.wordpress.org/browser/genesis-blocks/trunk/src/blocks/block-sharing/index.php#L268
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3115122%40genesis-blocks&new=3115122%40genesis-blocks&sfp_email=&sfph_mail=#file4
• https://research.cleantalk.org/cve-2024-3901/
• https://www.wordfence.com/threat-intel/vulnerabilities/id/ef21fae3-65ef-43e8-9792-619dfc4dfda8?source=cve
• https://plugins.trac.wordpress.org/browser/genesis-blocks/trunk/src/blocks/block-sharing/index.php#L268
• https://www.wordfence.com/threat-intel/vulnerabilities/id/ef21fae3-65ef-43e8-9792-619dfc4dfda8?source=cve

Get alerted when CVE-2024-3563 or the next vulnerability affects your stack