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5.4

Happyforms plugin: Unsecured user input in WordPress pages and posts

CVE-2023-0096 · published 3 years ago
Summary

The Happyforms WordPress plugin has a security issue that allows attackers with contributor or higher access to inject malicious code into pages and posts. This could lead to unauthorized actions on your website. Update the plugin to version 1.22.0 or later to fix this issue.

Original advisory text
The Happyforms WordPress plugin before 1.22.0 does not validate and escape some of its block options before outputting them back in a page/post where the block is embed, which could allow users wit...
The Happyforms WordPress plugin before 1.22.0 does not validate and escape some of its block options 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.
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
5.4 Medium
Exploitation
<1% chance of attack within 30 days
Timeline
Published6 Feb 2023
Updated4 Nov 2026
First seen11 Mar 2026
Sources
CVE-2023-0096 · OSV
CVE-2023-0096 · NVD
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