CVE-2013-6403: n/a vulnerability

Security readout for executives and security teams

CVE-2013-6403 is an old ownCloud issue where versions before 5.0.13 could let remote attackers bypass intended restrictions on the admin page. The public description says the issue is related to MariaDB, but does not explain the attack vector or business impact in detail. Exposure is most likely limited to legacy ownCloud deployments older than 5.0.13, especially where the admin page is reachable and MariaDB is used. The bundle does not identify other products or supported versions. Treat this as a legacy exposure cleanup item unless an affected ownCloud instance is internet-facing. Prioritize finding old deployments, limiting admin access, and upgrading or retiring them. Mitigation focus: Inventory ownCloud deployments and identify versions before 5.0.13.; Upgrade or retire affected ownCloud instances after checking vendor guidance.; Restrict admin page access to trusted networks and administrators..

Prepared: Jun 14, 2026, 15:13 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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CVE-2013-6403 mapping review

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Dec 24, 2013, 18:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
owncloud-cve20136403-security-bypass(89323)CVE reference · vdb-entry, x_refsource_XF

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CVE-2013-6403: The admin page in ownCloud before 5.0.13 allows remote attackers to bypass intended access restrictions via...