CVE-2008-5556

MediumCVSS 4.3/10Last modified Jun 16, 2026

Description

The XSS Filter in Microsoft Internet Explorer 8.0 Beta 2 does not recognize attack patterns designed to operate against web pages that are encoded with utf-7, which allows remote attackers to bypass the XSS protection mechanism and conduct XSS attacks by injecting crafted utf-7 content. NOTE: the vendor reportedly disputes this issue, stating "Behaviour is by design.

Metrics

CVSS 2.0 4.3/10AV:N/AC:M/Au:N/C:N/I:P/A:N

Weakness enumeration

CWE-79

Affected software

No affected versions have been published.

Timeline

Published
Dec 12, 2008
Last modified
Jun 16, 2026
NVD status
Modified

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CVE-2008-5556: Medium severity, CVSS 4.3 | Vulnix