CVSS base score
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
What the vulnerability does
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Ultimate Blocks Ultimate Blocks ultimate-blocks allows DOM-Based XSS.This issue affects Ultimate Blocks: from n/a through <= 3.3.0.
Explanation of Vulnerability in Simple Terms
Ultimate Blocks versions 3.3.0 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, including administrators. The vulnerability requires user interaction to trigger and can affect multiple users across the site.
What an attacker can do
Inject malicious scripts that run in other users' browsers when they view affected content.
Potential impact on your site
Attackers with contributor or subscriber accounts can compromise admin sessions, steal data, or modify site content seen by other users.
Conditions required to exploit
Attacker must have a low-privilege user account and the victim must visit a page containing the injected script.
Key dates
External resources
