Input validation vulnerability in Himer 2.1.0

The Himer theme for WordPress has a security issue where malicious code can be inserted through the ‘Custom CSS code’ setting. This can happen in all versions up to 2.1.0 because the theme does not properly filter and protect the input and output. This means that attackers who have contributor-level access or higher can add harmful code to pages, which will run whenever someone views that page.

Detected in:

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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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