Description
WordPress Plugin WP Post Popup is prone to a directory traversal vulnerability because it fails to sufficiently verify user-supplied input. Exploiting this issue can allow an attacker to obtain sensitive information that could aid in further attacks. WordPress Plugin WP Post Popup version 2.0 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 2.0.1 or latest
References
Related Vulnerabilities
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PrestaShop Files or Directories Accessible to External Parties Vulnerability (CVE-2020-5250)