{"id":"CVE-2013-5705","url":"https://www.cyber-defence.io/tools/cve/CVE-2013-5705","generatedAt":"2026-10-27T19:56:20.824Z","title":"apache2/modsecurity.c in ModSecurity before 2.7.6 allows remote attackers to bypass rules by using chunked transfer coding with a capitalized Chunked value in the Transfer-Encoding HTTP header.","description":"apache2/modsecurity.c in ModSecurity before 2.7.6 allows remote attackers to bypass rules by using chunked transfer coding with a capitalized Chunked value in the Transfer-Encoding HTTP header.","published":"2014-04-15T10:55:11.000Z","lastModified":"2026-06-16T23:59:17.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"2.0","score":5,"severity":"MEDIUM","vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N"},"cwe":[],"affected":["trustwave/modsecurity","debian/debian linux"],"epss":{"score":0.02722,"percentile":0.85943,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (2.72%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://martin.swende.se/blog/HTTPChunked.html","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://www.debian.org/security/2014/dsa-2991","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/SpiderLabs/ModSecurity/commit/f8d441cd25172fdfe5b613442fedfc0da3cc333d","tags":["Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://martin.swende.se/blog/HTTPChunked.html","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.debian.org/security/2014/dsa-2991","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/SpiderLabs/ModSecurity/commit/f8d441cd25172fdfe5b613442fedfc0da3cc333d","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2013-5705","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}