CVE-2008-5553

medium Microsoft
CVSS v3 Base Score
4.3
AV:N/AC:M/Au:N/C:N/I:P/A:N
EPSS Score
13.7%
Exploitation probability in 30 days
Top 6% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
M
Confidentiality
None
Integrity
P
Availability
None
Published: December 12, 2008 (6362 days ago)
Last Modified: April 23, 2026
Vendor: Microsoft
Source: NVD

Description

The XSS Filter in Microsoft Internet Explorer 8.0 Beta 2 disables itself upon encountering a certain X-XSS-Protection HTTP header, which allows remote attackers to bypass the XSS protection mechanism and conduct XSS attacks by injecting this header after a CRLF sequence. NOTE: the vendor has reportedly stated that the XSS Filter intentionally does not attempt to "address every conceivable XSS attack scenario."

CWE

CWE-79

Affected Products

microsoft internet explorer

References

🔗 www.securityfocus.com 🔗 exchange.xforce.ibmcloud.com 🔗 exchange.xforce.ibmcloud.com 🔗 www.securityfocus.com 🔗 exchange.xforce.ibmcloud.com