What’s Vulnerable › Vulnerabilities

CVE-2024-6362: Ultimate Blocks < 3.2.0 - Contributor+ Stored XSS

• Severity: medium (CVSS 4.6 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: yes
• Published: 2024-07-29 · updated 2026-06-17
• Weakness: CWE-79

Description

The Ultimate Blocks WordPress plugin before 3.2.0 does not validate and escape some of its post-grid block attributes before outputting them back in a page/post where the block is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks

Affected products

• ultimateblocks Ultimate Blocks – 25+ Gutenberg Blocks for Block Editor: before 3.2.0 — fixed in 3.2.0

How to fix

Upgrade to a fixed version: ultimateblocks Ultimate Blocks – 25+ Gutenberg Blocks for Block Editor 3.2.0. Check the vendor advisory for mitigations.

References

• https://wpscan.com/vulnerability/d2e2d06b-0f07-40b9-9b87-3373f62ae1a9/
• https://wpscan.com/vulnerability/d2e2d06b-0f07-40b9-9b87-3373f62ae1a9/

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