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 covertnine C9 Blocks c9-blocks allows DOM-Based XSS.This issue affects C9 Blocks: from n/a through <= 1.7.7.
Explanation of Vulnerability in Simple Terms
C9 Blocks versions 1.7.7 and earlier contain a cross-site scripting (XSS) vulnerability that allows authenticated users to inject malicious scripts. An attacker with low-level site access can craft a request that executes JavaScript in other users' browsers, potentially stealing session tokens or performing actions on their behalf. The vulnerability requires user interaction—the victim must visit a page containing the malicious payload.
What an attacker can do
Inject JavaScript that runs in other users' browsers and steals their session data or performs actions as them.
Potential impact on your site
Authenticated attackers can compromise other users' accounts or sessions; site admins should update C9 Blocks immediately.
Conditions required to exploit
Attacker needs a low-privilege site account and must trick a user into visiting a malicious link or page.
Key dates
External resources
