How severe is CVE-2014-2044?

CVE-2014-2044 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2014-2044 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 12% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-2044?

CVE-2014-2044 primarily affects Owncloud. In total, 35 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-2044?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2014-2044 published?

CVE-2014-2044 was published on 2014-10-06 and last updated on 2026-06-17.

CVE-2014-2044

CVE-2014-2044 is a high-severity vulnerability in Owncloud with a CVSS 2.0 base score of 7.5. Its EPSS exploit-prediction score of 12% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-94.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 12% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Owncloud
Published: 2014-10-06
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2014-2044?: 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.
How severe is CVE-2014-2044?: CVE-2014-2044 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2014-2044 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 12% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-2044?: CVE-2014-2044 primarily affects Owncloud. In total, 35 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-2044?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2014-2044 published?: CVE-2014-2044 was published on 2014-10-06 and last updated on 2026-06-17.

References

Affected products (35)

cpe:2.3:a:owncloud:owncloud:*:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:3.0.0:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:3.0.1:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:3.0.2:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:3.0.3:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:4.0.0:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:4.0.1:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:4.0.2:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:4.0.3:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:4.0.4:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:4.0.5:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:4.0.6:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:4.0.7:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:4.0.8:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:4.0.9:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:4.0.10:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:4.0.11:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:4.0.12:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:4.0.13:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:4.0.14:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:4.0.15:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:4.0.16:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:4.5.0:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:4.5.1:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:4.5.2:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:4.5.3:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:4.5.4:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:4.5.5:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:4.5.6:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:4.5.7:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:4.5.8:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:4.5.9:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:4.5.10:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:4.5.11:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:4.5.12:*:*:*:*:*:*:*

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