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Vulnerability record · CVE-2014-2044 · published 6 October 2014

CVE-2014-2044: Owncloud code injection vulnerability

Owncloud · Owncloud

Incomplete blacklist vulnerability in ajax/upload.php in ownCloud before 5.0, when running on Windows, allows remote authenticated users to bypass intended access restrictions, upload files with arbitrary names, and execute arbitrary code via an Alternate Data Stream (ADS) syntax in the filename parameter, as demonstrated using .htaccess::$DATA to upload a PHP program.

7.5 CVSS 2.0 High EPSS 12% · top 3.9% CWE-94 · Code injection
7.5CVSS 2.0 base score
12%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
18References, 6 tagged exploit
17 Jun 2026Last modified by NVD

Description

Incomplete blacklist vulnerability in ajax/upload.php in ownCloud before 5.0, when running on Windows, allows remote authenticated users to bypass intended access restrictions, upload files with arbitrary names, and execute arbitrary code via an Alternate Data Stream (ADS) syntax in the filename parameter, as demonstrated using .htaccess::$DATA to upload a PHP program.

AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://packetstormsecurity.com/files/125585/ownCloud-4.0.x-4.5.x-Remote-Code-Execution.html Exploit
http://seclists.org/fulldisclosure/2014/Mar/45
http://secunia.com/advisories/57267
http://www.exploit-db.com/exploits/32162 Exploit
http://www.osvdb.org/104082
http://www.securityfocus.com/archive/1/531365/100/0/threaded
http://www.securityfocus.com/bid/66000
https://exchange.xforce.ibmcloud.com/vulnerabilities/91757
https://www.portcullis-security.com/security-research-and-downloads/security-advisories/cve-2014-2044/ Exploit
http://packetstormsecurity.com/files/125585/ownCloud-4.0.x-4.5.x-Remote-Code-Execution.html Exploit
http://seclists.org/fulldisclosure/2014/Mar/45
http://secunia.com/advisories/57267
http://www.exploit-db.com/exploits/32162 Exploit
http://www.osvdb.org/104082
http://www.securityfocus.com/archive/1/531365/100/0/threaded
http://www.securityfocus.com/bid/66000
https://exchange.xforce.ibmcloud.com/vulnerabilities/91757
https://www.portcullis-security.com/security-research-and-downloads/security-advisories/cve-2014-2044/ Exploit

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2014-2044), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.