CVE-2010-3324

Microsoft Internet Explorer 8 - Auth Bypass

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2010-3324. PoCs published by Mario Heiderich.

AI-analyzed exploit summary This exploit demonstrates a security-bypass weakness in Internet Explorer 8's toStaticHTML function, allowing script execution via a crafted postMessage call. The PoC includes a form to test the bypass and a style block with obfuscated CSS import to trigger the vulnerability.

Description

The toStaticHTML function in Microsoft Internet Explorer 8, and the SafeHTML function in Microsoft Windows SharePoint Services 3.0 SP2, SharePoint Foundation 2010, Office SharePoint Server 2007 SP2, Groove Server 2010, and Office Web Apps, allows remote attackers to bypass the cross-site scripting (XSS) protection mechanism and conduct XSS attacks via a crafted use of the Cascading Style Sheets (CSS) @import rule, aka "HTML Sanitization Vulnerability," a different vulnerability than CVE-2010-1257.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Mario Heiderich · htmlremotewindows
https://www.exploit-db.com/exploits/34478

This exploit demonstrates a security-bypass weakness in Internet Explorer 8's toStaticHTML function, allowing script execution via a crafted postMessage call. The PoC includes a form to test the bypass and a style block with obfuscated CSS import to trigger the vulnerability.

Classification
Working Poc 90%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: Internet Explorer 8
No auth needed
Prerequisites: Victim must be using Internet Explorer 8 · Victim must interact with the malicious form
MITRE ATT&CK
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (7)

Core 7
Core References
Third Party Advisory, VDB Entry vdb-entry signature x_refsource_oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7297
US Government Resource third-party-advisory x_refsource_cert
http://www.us-cert.gov/cas/techalerts/TA10-285A.html
Vendor Advisory x_refsource_confirm
http://support.avaya.com/css/P8/documents/100113324

Scores

EPSS 0.2502
EPSS Percentile 97.6%

Details

CWE
CWE-79
Status published
Products (6)
microsoft/groove_server 2010
microsoft/internet_explorer 8
microsoft/sharepoint_foundation 2010
microsoft/sharepoint_server 2007 sp2
microsoft/sharepoint_services 3.0 sp2
microsoft/web_apps
Published Sep 17, 2010
Tracked Since Feb 18, 2026