The GD Security Headers plugin for WordPress is not secure in versions up to, and including, 1.6.1. An attacker could insert malicious web scripts into pages which would execute when a user views those pages. This is because the plugin does not properly sanitize user input or escape output.
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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