Contact Builder by Themify <= 1.4.5 - Email Injection

5.3
Improper Input Validation
CVSS 5.3 (Medium)
Publicly Published July 13, 2020
Last Updated January 22, 2024
Researcher David Cucala

Description

The Contact Builder by Themify plugin is vulnerable to email injection in versions up to, and including 1.4.5. This makes it possible for attackers to forward contact form submissions as a "copy" to the contact-email supplied even when the setting is disabled. In addition, the contact-message does not do any input sanitization allowing HTML to be injected into the message content. This was being actively exploited to craft phishing emails and sending those via the vulnerable sites.

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Vulnerability Details for Contact Builder by Themify

Software Type Plugin
Software Slug builder-contact
Patched? Yes
Remediation Update to version 1.4.6, or a newer patched version
Affected Version
  • <= 1.4.5
Patched Version
  • 1.4.6

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