Vulnerable component: Microsoft SharePoint Server
CVSSv3 score: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:H/RL:O/RC:C
CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
The vulnerability allows a remote attacker to perform XSS attacks.
The vulnerability exists due to insufficient sanitization of user-supplied input data passed to Help.aspx script. A remote attacker can trick the victim into following a specially crafted link and execute arbitrary HTML and script code in victimтАЩs browser in context of vulnerable SharePoint website.
Successful exploitation may allow an attacker to conduct phishing and drive-by-download attacks.
Note: this vulnerability is being publicly exploited.
- Microsoft SharePoint Server 2007 - Cross-Site Scripting [Exploit-DB]