How severe is CVE-2013-6403?

CVE-2013-6403 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2013-6403 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-6403?

CVE-2013-6403 primarily affects Owncloud. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-6403?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2013-6403 published?

CVE-2013-6403 was published on 2013-12-24 and last updated on 2026-06-17.

CVE-2013-6403

CVE-2013-6403 is a medium-severity vulnerability in Owncloud with a CVSS 2.0 base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-264.

Key facts

Severity: Medium (CVSS 2.0 base score 6.8)
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Owncloud
Published: 2013-12-24
Last modified: 2026-06-17

Description

The admin page in ownCloud before 5.0.13 allows remote attackers to bypass intended access restrictions via unspecified vectors, related to MariaDB.

Frequently asked questions

What is CVE-2013-6403?: The admin page in ownCloud before 5.0.13 allows remote attackers to bypass intended access restrictions via unspecified vectors, related to MariaDB.
How severe is CVE-2013-6403?: CVE-2013-6403 has a CVSS 2.0 base score of 6.8, rated medium severity.
Is CVE-2013-6403 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-6403?: CVE-2013-6403 primarily affects Owncloud. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-6403?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-6403 published?: CVE-2013-6403 was published on 2013-12-24 and last updated on 2026-06-17.

References

Affected products (13)

cpe:2.3:a:owncloud:owncloud:*:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:5.0.0:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:5.0.1:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:5.0.2:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:5.0.3:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:5.0.4:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:5.0.5:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:5.0.6:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:5.0.7:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:5.0.8:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:5.0.9:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:5.0.10:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:5.0.11:*:*:*:*:*:*:*

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