The Classic Editor Addon plugin for WordPress is not secure in versions up to 2.6.3. This is because it contains a vulnerable version of the wp-dependency-installer library. This means that, if an unauthenticated attacker can get a site administrator to do something like click a link, they can install and activate any plugin they want without permission.
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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