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 Instagram for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via shortcodes in versions up to, and including, 2.1.6 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Explanation of Vulnerability in Simple Terms
The Instagram for WordPress plugin versions 2.1.6 and earlier contain a stored cross-site scripting (XSS) vulnerability. An authenticated user with low privileges can inject malicious scripts that execute in the browsers of other site visitors, potentially compromising their sessions or stealing data. The vulnerability affects the entire site scope due to how the plugin processes and displays user-controlled content.
What an attacker can do
Inject malicious scripts that run in other users' browsers and steal their session data or perform actions on their behalf.
Potential impact on your site
Visitors and administrators may have their sessions hijacked or be redirected to malicious sites; site reputation and user trust can be damaged.
Conditions required to exploit
Attacker must have a low-privilege WordPress account (e.g., subscriber or contributor role) and network access to the site.
Key dates
External resources
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