{"id":"CVE-2005-2089","aliases":["EUVD-2005-2091","GHSA-h9j5-mj66-qp4g"],"status":"published","title":"Microsoft IIS 5.0 and 6.0 allows remote attackers to poison the web cache, bypass web application...","description":"Microsoft IIS 5.0 and 6.0 allows remote attackers to poison the web cache, bypass web application firewall protection, and conduct XSS attacks via an HTTP request with both a \"Transfer-Encoding: chunked\" header and a Content-Length header, which causes IIS to incorrectly handle and forward the body of the request in a way that causes the receiving server to process it as a separate HTTP request, aka \"HTTP Request Smuggling.\"","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":"2026-11-08","score":0.3097,"percentile":0.98271,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-444"],"published":"2005-06-30T04:00:00Z","modified":"2026-06-16T22:14:13Z","products":[{"vendor":"microsoft","product":"internet_information_services"}],"references":[{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/42899","tags":["vdb-entry","x_refsource_XF","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"http://www.securiteam.com/securityreviews/5GP0220G0U.html","tags":["x_refsource_MISC","x_transferred","Broken Link"]},{"url":"http://www.watchfire.com/resources/HTTP-Request-Smuggling.pdf","tags":["x_refsource_MISC","x_transferred","Broken Link"]},{"url":"http://seclists.org/lists/bugtraq/2005/Jun/0025.html","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","Mailing List","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2005-2089"},{"url":"https://github.com/advisories/GHSA-h9j5-mj66-qp4g"}],"sources":{"cve":[{"id":"CVE-2005-2089","description":"Microsoft IIS 5.0 and 6.0 allows remote attackers to poison the web cache, bypass web application firewall protection, and conduct XSS attacks via an HTTP request with both a \"Transfer-Encoding: chunked\" header and a Content-Length header, which causes IIS to incorrectly handle and forward the body of the request in a way that causes the receiving server to process it as a separate HTTP request, aka \"HTTP Request Smuggling.\"","status":"published","published":"2005-06-30T04:00:00Z","modified":"2024-08-07T22:15:37.438Z","updated_at":"2026-11-02T14:33:38.187792Z"}],"euvd":[{"id":"EUVD-2005-2091","description":"Microsoft IIS 5.0 and 6.0 allows remote attackers to poison the web cache, bypass web application firewall protection, and conduct XSS attacks via an HTTP request with both a \"Transfer-Encoding: chunked\" header and a Content-Length header, which causes IIS to incorrectly handle and forward the body of the request in a way that causes the receiving server to process it as a separate HTTP request, aka \"HTTP Request Smuggling.\"","status":"published","published":"2005-06-30T04:00:00Z","modified":"2024-08-07T22:15:37Z","updated_at":"2026-11-03T01:15:31.903004Z"}],"ghsa":[{"id":"GHSA-h9j5-mj66-qp4g","title":"Microsoft IIS 5.0 and 6.0 allows remote attackers to poison the web cache, bypass web application...","description":"Microsoft IIS 5.0 and 6.0 allows remote attackers to poison the web cache, bypass web application firewall protection, and conduct XSS attacks via an HTTP request with both a \"Transfer-Encoding: chunked\" header and a Content-Length header, which causes IIS to incorrectly handle and forward the body of the request in a way that causes the receiving server to process it as a separate HTTP request, aka \"HTTP Request Smuggling.\"","status":"published","published":"2022-05-01T02:04:53Z","modified":"2024-02-09T03:32:52Z","cwes":["CWE-444"],"updated_at":"2026-11-02T14:55:34.624515Z"}],"nvd":[{"id":"CVE-2005-2089","description":"Microsoft IIS 5.0 and 6.0 allows remote attackers to poison the web cache, bypass web application firewall protection, and conduct XSS attacks via an HTTP request with both a \"Transfer-Encoding: chunked\" header and a Content-Length header, which causes IIS to incorrectly handle and forward the body of the request in a way that causes the receiving server to process it as a separate HTTP request, aka \"HTTP Request Smuggling.\"","status":"published","published":"2005-07-05T04:00:00Z","modified":"2026-06-16T22:14:13.36Z","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-444"],"updated_at":"2026-11-02T14:00:55.600202Z"}]}}