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CVE-2009-5031
ModSecurity before 2.5.11 treats request parameter values containing single quotes as files, which allows remote attackers to bypass…
Medium4.3EPSS 2.9%
- Published
- Updated
- Reserved
- Assigned by
- redhat
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
- EPSS (exploitation in 30 days)
- 2.9% · top 13% of all CVEs (5 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.3.
Weakness
Affected products
n/a
- affected n/a
References (11)
- openSUSE-SU-2013:1342 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- 54156 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- openSUSE-SU-2013:1331 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- http://www.suspekt.org/downloads/POC2009-ShockingNewsInPHPExploitation.pdf (opens in a new tab)x_refsource_MISCx_transferred
- http://mod-security.svn.sourceforge.net/viewvc/mod-security/m2/branches/2.6.x/CHANGES (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://blog.ivanristic.com/2012/06/modsecurity-and-modsecurity-core-rule-set-multipart-bypasses.html (opens in a new tab)x_refsource_MISCx_transferred
- [oss-security] 20120621 Re: mod_security CVE request (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [oss-security] 20120621 mod_security CVE request (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 49576 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- https://www.modsecurity.org/fisheye/browse/modsecurity/m2/branches/2.5.x/apache2/msc_multipart.c?r2=1419&r1=1366 (opens in a new tab)x_refsource_CONFIRMx_transferred
- openSUSE-SU-2013:1336 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2009-5031)Record last updated .