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 Pinterest Site Verification plugin using Meta Tag plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'post_var' parameter in versions up to, and including, 1.8 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-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
The Pinterest Site Verification plugin using Meta Tag contains a cross-site scripting (XSS) vulnerability in versions up to 1.8. An authenticated user with low privileges can inject malicious scripts that execute in other users' browsers, potentially affecting site-wide functionality. The vulnerability requires network access but no user interaction from the victim.
What an attacker can do
Inject malicious scripts that execute in other users' browsers and affect site functionality.
Potential impact on your site
Authenticated users can inject scripts affecting other visitors and site operations; update the plugin immediately.
Conditions required to exploit
Attacker must be authenticated with low-level user privileges; no victim interaction required.
Key dates
External resources
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