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 Easy GitHub Gist Shortcodes plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'id' parameter of the gist shortcode in all versions up to, and including, 1.0 due to insufficient input sanitization and output escaping. 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
The Easy GitHub Gist Shortcodes plugin for WordPress contains a cross-site scripting (XSS) vulnerability in versions up to 1.0. An authenticated user with low privileges can inject malicious scripts that execute in other users' browsers, including site administrators. The vulnerability affects the entire site scope due to how the plugin processes shortcode output.
What an attacker can do
Inject malicious JavaScript that runs in other users' browsers, potentially stealing session tokens or admin credentials.
Potential impact on your site
Any authenticated user can inject scripts affecting other site visitors and administrators, risking account compromise and data theft.
Conditions required to exploit
Attacker must have a low-privilege WordPress account (e.g., contributor or subscriber role).
Key dates
External resources
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