CVE-2023-49103
7.5, high Known exploitedownCloud graphapi Information Disclosure Vulnerability
- CVSS
- 7.5, high high CVSS v3.1
- EPSS, next 30 days
- 78% higher than 99.5% of scored CVEs
- Exploitation
- Confirmed in the wild
- Published
- 21 Nov 20232 years ago
Known exploited
CISA added this to the Known Exploited Vulnerabilities Catalog on 30 Nov 2023. US federal agencies had to remediate by 21 Dec 2023, a deadline that has passed.
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.
Details
- Vendor
- ownCloud
- Product
- Graph Api
- Weakness
- CWE-200 (opens in a new tab)
- Status
- Analyzed
- Updated
- 17 Jun 2026
- Assigner
- cve@mitre.org
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
References 3
Advisories 2
The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.
Other ownCloud CVEs
Every ownCloud CVE we holdSame vendor in what we hold, not a known link between the flaws.
- CVE-2023-49105 ownCloud Improper Authentication Vulnerability KEV EPSS 43% 9.8, critical
Beyond this page
Is CVE-2023-49103 in your network?
This page tells you how dangerous CVE-2023-49103 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.
CVE-2023-49103 is in the CISA catalogue of exploited vulnerabilities: attackers are already exploiting it.
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EXYS7600 OCELOT
Find it before attackers do
Ocelot scans your network on a schedule and reports every vulnerability it finds by its CVE identifier, with its CVSS score and how many of your hosts are affected. A finding like CVE-2023-49103 comes with the devices to patch.
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EXYS7950 KONDRA
Detect it if it's exploited
Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.
Learn more about EXYS7950 KONDRA
Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 17 Oct 2026, not the live upstream state.