WordPress Login Rebuilder plugin versions prior to 2.8.1 suffer from a persistent cross site scripting vulnerability.
advisories | CVE-2023-2223
Tittle:
WordPress Plugin Login Rebuilder < 2.8.1 - Admin+ Stored XSS
References:
CVE-2023-2223
Author:
Taurus Omar
Description:
The plugin does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup).
Affects Plugins:
Login Rebuilder - Fixed in version 2.8.1
Proof of Concept:
1. Go to Settings ยป Login rebuilder
2. In Login file keyword, add payload: "><iframe src="<svg onload=alert(4);>">
3. Save the changes to trigger XSS.
Classification:
Type XSS
OWASP top 10 A7: Cross-Site Scripting (XSS)
CWE-79
wpScan:
https://wpscan.com/vulnerability/7b356b82-5d03-4f70-b4ce-f1405304bb52
