What’s Vulnerable › Vulnerabilities

CVE-2008-5554

• Severity: medium (CVSS 4.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 14.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2008-12-12 · updated 2026-06-16
• Weakness: CWE-79

Description

The XSS Filter in Microsoft Internet Explorer 8.0 Beta 2 does not properly handle some HTTP headers that appear after a CRLF sequence in a URI, which allows remote attackers to bypass the XSS protection mechanism and conduct XSS or redirection attacks, as demonstrated by the (1) Location and (2) Set-Cookie HTTP headers. NOTE: the vendor has reportedly stated that the XSS Filter intentionally does not attempt to "address every conceivable XSS attack scenario."

Affected products

• Microsoft Internet Explorer 11: 8-beta2

References

• http://www.securityfocus.com/archive/1/499124/100/0/threaded
• https://exchange.xforce.ibmcloud.com/vulnerabilities/47277
• https://exchange.xforce.ibmcloud.com/vulnerabilities/47443
• http://www.securityfocus.com/archive/1/499124/100/0/threaded
• https://exchange.xforce.ibmcloud.com/vulnerabilities/47277
• https://exchange.xforce.ibmcloud.com/vulnerabilities/47443

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