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 jp2112 Feedburner Optin Form feedburner-optin-form allows Stored XSS.This issue affects Feedburner Optin Form: from n/a through <= 0.2.8.
Explanation of Vulnerability in Simple Terms
The Feedburner Optin Form plugin contains a cross-site scripting (XSS) vulnerability that allows authenticated users to inject malicious scripts. When a victim visits a page containing the injected payload, the script executes in their browser with their privileges. The vulnerability affects versions 0.2.8 and earlier. Site owners should update to a version newer than 0.2.8.
What an attacker can do
Inject malicious JavaScript that executes when other users view affected pages, potentially stealing session tokens or modifying site content.
Potential impact on your site
Authenticated users can inject scripts affecting other visitors; if an admin visits the page, the attacker gains admin-level access to the site.
Conditions required to exploit
Attacker needs a low-privilege account (e.g., subscriber or contributor) and must trick a user into visiting a page with the malicious payload.
Key dates
External resources
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