CVE-2023-49103
highpriority · act · 90OT risk · criticalKEV · exploitedEPSS 0.778 · 100 %ileexploit · functionalDEEURUUSadded 2023-11-30remediate by 2023-12-21
required action Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
EPSS · scored 2026-10-26
ownCloud graphapi Information Disclosure Vulnerability
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–10
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
ATT&CK techniques
ATT&CK techniques this enables or maps to.
exploits (4)
Public proof-of-concept and weaponised exploit code.
- auxiliary/gather/owncloud_phpinfo_readerownCloud Phpinfo Readerfunctional · metasploit
- creacitysec/CVE-2023-49103PoC for the CVE-2023-49103PoC · poc_in_github
- d0rb/CVE-2023-49103This is a simple proof of concept for CVE-2023-49103.PoC · poc_in_github
- merlin-ke/OwnCloud-CVE-2023-49103OwnCloud CVE-2023-49103PoC · poc_in_github
affected products (7)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2023-2985ownCloud: Mehrere SchwachstellenDeutsch2023-11-21csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in ownCloud ausnutzen, um Informationen offenzulegen, Sicherheitsvorkehrungen zu umgehen und Dateien zu manipulieren.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (8)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2023-49103/cnnvd
- https://owncloud.com/security-advisories/disclosure-of-sensitive-credentials-and-configuration-in-containerized-deployments/cnnvd
- https://owncloud.org/securitycnnvd
- https://owncloud.com/security-advisories/disclosure-of-sensitive-credentials-and-configuration-in-containerized-deployments/enisa_euvd
- https://owncloud.org/securityenisa_euvd
- https://owncloud.com/security-advisories/disclosure-of-sensitive-credentials-and-configuration-in-containerized-deployments/Vendor Advisorynvd
- https://owncloud.org/securityProductnvd
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-49103US Government Resourcenvd
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