Critical 10.0Known exploited (CISA KEV)Published Nov 21, 2023

CVE-2023-49103An issue was discovered in ownCloud owncloud/graphapi 0.2.x before 0.2.1 and 0.3.x before 0.3.1.

Updated under an hour ago (2026-10-19 13:50 UTC)

Does this affect you?

It affects owncloud graph_api. Add what you run to find out whether that includes you.

CISA lists it as known exploited since Nov 30, 2023; federal agencies had to remediate by Dec 21, 2023. Treat that date as your deadline.

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Every CVE for owncloud graph_api

Exploited in the last 30 days

An issue was discovered in ownCloud owncloud/graphapi 0.2.x before 0.2.1 and 0.3.x before 0.3.1. The graphapi app relies on a third-party GetPhpInfo.php library that provides a URL. When this URL is accessed, it reveals the configuration details of the PHP environment (phpinfo). This information includes all the environment variables of the webserver. In containerized deployments, these environment variables may include sensitive data such as the ownCloud admin password, mail server credentials, and license key. Simply disabling the graphapi app does not eliminate the vulnerability. Additionally, phpinfo exposes various other potentially sensitive configuration details that could be exploited by an attacker to gather information about the system. Therefore, even if ownCloud is not running in a containerized environment, this vulnerability should still be a cause for concern. Note that Docker containers from before February 2023 are not vulnerable to the credential disclosure.

CVSS: 10.0 CRITICAL (v3.1, CNA)CVSS:3.1/AC:L/AV:N/A:H/C:H/I:H/PR:N/S:C/UI:N
Weakness (CWE): CWE-200
Known exploited: Added to CISA KEV Nov 30, 2023; federal remediation due Dec 21, 2023Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
EPSS (exploitation in the next 30 days): 78.43% (percentile 100)
Assigned by: mitre
NVD analysis: Analyzed
Record last updated: Oct 21, 2025
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

owncloud graph_api owncloud:graph_api	0.2.0; 0.3.0	NVD

References

https://owncloud.org/securityproduct
https://owncloud.com/security-advisories/disclosure-of-sensitive-credentials-and-configuration-in-containerized-deployments/vendor-advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-49103us-government-resource

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.