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 Advanced WordPress Backgrounds plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘imageTag’ parameter in all versions up to, and including, 1.12.3 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 Advanced WordPress Backgrounds plugin through version 1.12.3 contains a stored cross-site scripting (XSS) vulnerability. An authenticated user with low privileges can inject malicious JavaScript that executes in the browsers of other site visitors and administrators. The vulnerability affects the plugin's background configuration functionality and can impact site integrity and user security.
What an attacker can do
Inject malicious JavaScript that runs in other users' browsers when they view affected pages.
Potential impact on your site
Visitors and admins may have their sessions hijacked, credentials stolen, or site content modified without their knowledge.
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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