CVSS base score
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
What the vulnerability does
The Gutentor – Gutenberg Blocks – Page Builder for Gutenberg Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 3.5.5 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
Gutentor versions up to 3.5.5 contain a stored cross-site scripting (XSS) vulnerability in the page builder. An authenticated user with low privileges can inject malicious scripts that execute when other users view affected pages. The vulnerability requires user interaction and can affect site visitors across the application scope.
What an attacker can do
Inject malicious scripts that run in other users' browsers when they view affected pages.
Potential impact on your site
Site visitors may have their sessions hijacked, credentials stolen, or be redirected to malicious sites by injected scripts.
Conditions required to exploit
Attacker needs a low-privilege WordPress account and must trick a user into viewing a page containing the injected payload.
Key dates
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