CVSS base score
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
What the vulnerability does
The Ova Advent plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's shortcodes in all versions up to, and including, 1.1.7 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Explanation of Vulnerability in Simple Terms
Ova Advent versions up to 1.1.7 contain a vulnerability allowing authenticated users with low privileges to read or modify data across the application due to improper access control. The vulnerability has scope impact, meaning it can affect components beyond the vulnerable code. No availability impact is present. Administrators should update to a version newer than 1.1.7.
What an attacker can do
Read or modify data in the application with low-level user privileges.
Potential impact on your site
Authenticated users can access or alter data they should not be able to reach, compromising data integrity.
Conditions required to exploit
Attacker must have a low-privilege user account; no user interaction required.
Key dates
External resources
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