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 Spectra – WordPress Gutenberg Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘block_id’ parameter in versions up to, and including, 2.13.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with author-level permissions 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
Spectra Gutenberg Blocks versions up to 2.13.0 contain a stored cross-site scripting (XSS) vulnerability. An authenticated user with low privileges can inject malicious scripts into the site that execute in other users' browsers, including administrators. The vulnerability affects the block editor and can impact site integrity and user data.
What an attacker can do
Inject malicious scripts that run in other users' browsers when they view affected pages.
Potential impact on your site
Attackers with contributor or editor access can compromise admin accounts and modify site content or settings.
Conditions required to exploit
Attacker must have a low-privilege authenticated account on the WordPress site.
Key dates
External resources
Related vulnerabilities
