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6.5

Ultimate Blocks plugin can let attackers inject malicious code

CVE-2025-47493 · published 1 year ago
Summary

Versions of the Ultimate Blocks WordPress plugin up to 3.2.9 do not properly clean data before showing it on a page, which allows a malicious person to add harmful script code that runs in visitors' browsers. This could let an attacker steal login information or perform actions on behalf of users. Update the plugin to the latest version that fixes the problem, or apply the vendor’s recommended patch, and review any custom content for unexpected script code.

Original advisory text
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Ultimate Blocks Ultimate Blocks ultimate-blocks allows DOM-Based XSS.This issue affects Ultimat...
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Ultimate Blocks Ultimate Blocks ultimate-blocks allows DOM-Based XSS.This issue affects Ultimate Blocks: from n/a through <= 3.2.9.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker partial control
Severity
6.5 Medium
Exploitation
<1% chance of attack within 30 days
Type
CWE-79Cross-site Scripting (XSS)
Timeline
Published7 May 2025
Updated4 Nov 2026
First seen7 Mar 2026
Sources
CVE-2025-47493 · NVD
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