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Input validation vulnerability in Flexible PDF Invoices for WooCommerce & WordPress 6.0.13

  • Severity: medium-risk
  • Status: Fixed
  • Publication: September 22, 2025

The plugin called “Flexible PDF Invoices” used for WordPress and WooCommerce has a security issue where unauthorized users can perform actions on the site without permission. This is because the plugin does not properly check for a security code called “nonce.” Attackers can take advantage of this by tricking a site administrator into clicking on a link, giving them access to perform actions they are not supposed to.

Detected in:

Flexible PDF Invoices for WooCommerce & WordPress fixed vulnerable versions: >= * <= 6.0.13

This information is sourced from www.wpvulnerability.com. An open-source database of vulnerabilities maintained by the community. Help us out by submitting vulnerabilities!

Version compare shows which versions have a vulnerability. For example: >= 2.2.8 <= 2.2.21 means:

> from 2.2.8
= including 2.2.8 & 2.2.21
< to 2.2.21

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