{"cve":"CVE-2009-5031","nvd":{"published":"2012-07-22T16:55:17.307","modified":"2026-06-16T23:14:51.810","status":"Modified","description":"ModSecurity before 2.5.11 treats request parameter values containing single quotes as files, which allows remote attackers to bypass filtering rules and perform other attacks such as cross-site scripting (XSS) attacks via a single quote in a request parameter in the Content-Disposition field of a request with a multipart/form-data Content-Type header.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-79"],"references":["http://blog.ivanristic.com/2012/06/modsecurity-and-modsecurity-core-rule-set-multipart-bypasses.html","http://lists.opensuse.org/opensuse-updates/2013-08/msg00020.html","http://lists.opensuse.org/opensuse-updates/2013-08/msg00025.html","http://lists.opensuse.org/opensuse-updates/2013-08/msg00031.html","http://mod-security.svn.sourceforge.net/viewvc/mod-security/m2/branches/2.6.x/CHANGES"],"products":["opensuse:opensuse","trustwave:modsecurity"],"source":"nvd","synced_at":"2026-10-19T20:24:00.973572543+00:00"},"epss":{"cve":"CVE-2009-5031","score":0.0293,"percentile":0.87079,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}