CVE-2009-5031
mediumpriority · track · 18EPSS 0.029 · 87 %ileEUUSEPSS · scored 2026-10-28
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 3.7–4.3
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (5)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (31)
External citations — patches, advisories, analysis.
- http://blog.ivanristic.com/2012/06/modsecurity-and-modsecurity-core-rule-set-multipart-bypasses.htmlcnnvd
- http://mod-security.svn.sourceforge.net/viewvc/mod-security/m2/branches/2.6.x/CHANGEScnnvd
- http://secunia.com/advisories/49576cnnvd
- http://www.modsecurity.org/Patchcnnvd
- http://www.openwall.com/lists/oss-security/2012/06/22/1cnnvd
- http://www.openwall.com/lists/oss-security/2012/06/22/2cnnvd
- http://www.securityfocus.com/bid/54156cnnvd
- http://www.suspekt.org/downloads/POC2009-ShockingNewsInPHPExploitation.pdfcnnvd
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