CVE-2023-49103
owncloud graph api
Published 21 Nov 2023 · updated 17 Jun 2026 · Analyzed
Exploited in the wild
CISA added this to its Known Exploited Vulnerabilities catalog on 30 Nov 2023, with a remediation deadline of 21 Dec 2023 for US federal agencies.
Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Description
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.
References
- owncloud.com/security-advisories/disclosure-of-sensitive-credentials-and-configuration-in-containerized-deployments/ · Vendor Advisory
- owncloud.org/security · Product
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-49103 · US Government Resource