{"id":"CVE-2008-5555","aliases":["EUVD-2008-5530","GHSA-vfp4-vxgp-j26v"],"status":"published","title":"Microsoft Internet Explorer 8.0 Beta 2 relies on the XDomainRequestAllowed HTTP header to...","description":"Microsoft Internet Explorer 8.0 Beta 2 relies on the XDomainRequestAllowed HTTP header to authorize data exchange between domains, which allows remote attackers to bypass the product's XSS Filter protection mechanism, and conduct XSS and cross-domain attacks, by injecting this header after a CRLF sequence, related to \"XDomainRequest Allowed Injection (XAI).\" NOTE: the vendor has reportedly stated that the XSS Filter intentionally does not attempt to \"address every conceivable XSS attack scenario.\"","severity":{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.12526,"percentile":0.96254,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2008-12-12T18:13:00Z","modified":"2026-06-16T23:00:32Z","products":[{"vendor":"microsoft","product":"internet_explorer"}],"references":[{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/47444","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/47277","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://www.securityfocus.com/archive/1/499124/100/0/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2008-5555"},{"url":"https://github.com/advisories/GHSA-vfp4-vxgp-j26v"}],"sources":{"cve":[{"id":"CVE-2008-5555","description":"Microsoft Internet Explorer 8.0 Beta 2 relies on the XDomainRequestAllowed HTTP header to authorize data exchange between domains, which allows remote attackers to bypass the product's XSS Filter protection mechanism, and conduct XSS and cross-domain attacks, by injecting this header after a CRLF sequence, related to \"XDomainRequest Allowed Injection (XAI).\" NOTE: the vendor has reportedly stated that the XSS Filter intentionally does not attempt to \"address every conceivable XSS attack scenario.\"","status":"published","published":"2008-12-12T18:13:00Z","modified":"2024-08-07T10:56:47.313Z","updated_at":"2026-11-02T14:34:44.297409Z"}],"euvd":[{"id":"EUVD-2008-5530","description":"Microsoft Internet Explorer 8.0 Beta 2 relies on the XDomainRequestAllowed HTTP header to authorize data exchange between domains, which allows remote attackers to bypass the product's XSS Filter protection mechanism, and conduct XSS and cross-domain attacks, by injecting this header after a CRLF sequence, related to \"XDomainRequest Allowed Injection (XAI).\" NOTE: the vendor has reportedly stated that the XSS Filter intentionally does not attempt to \"address every conceivable XSS attack scenario.\"","status":"published","published":"2008-12-12T18:13:00Z","modified":"2024-08-07T10:56:47Z","updated_at":"2026-11-03T01:38:42.900299Z"}],"ghsa":[{"id":"GHSA-vfp4-vxgp-j26v","title":"Microsoft Internet Explorer 8.0 Beta 2 relies on the XDomainRequestAllowed HTTP header to...","description":"Microsoft Internet Explorer 8.0 Beta 2 relies on the XDomainRequestAllowed HTTP header to authorize data exchange between domains, which allows remote attackers to bypass the product's XSS Filter protection mechanism, and conduct XSS and cross-domain attacks, by injecting this header after a CRLF sequence, related to \"XDomainRequest Allowed Injection (XAI).\" NOTE: the vendor has reportedly stated that the XSS Filter intentionally does not attempt to \"address every conceivable XSS attack scenario.\"","status":"published","published":"2022-05-14T02:39:45Z","modified":"2023-02-02T05:06:02Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:52:13.666892Z"}],"nvd":[{"id":"CVE-2008-5555","description":"Microsoft Internet Explorer 8.0 Beta 2 relies on the XDomainRequestAllowed HTTP header to authorize data exchange between domains, which allows remote attackers to bypass the product's XSS Filter protection mechanism, and conduct XSS and cross-domain attacks, by injecting this header after a CRLF sequence, related to \"XDomainRequest Allowed Injection (XAI).\" NOTE: the vendor has reportedly stated that the XSS Filter intentionally does not attempt to \"address every conceivable XSS attack scenario.\"","status":"published","published":"2008-12-12T18:30:03.343Z","modified":"2026-06-16T23:00:32.74Z","cvss":[{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:01:30.411919Z"}]}}