Known exploited · ownCloud
CVE-2023-49103: ownCloud graphapi Information Disclosure Vulnerability
What it is
ownCloud graphapi contains an information disclosure vulnerability that can reveal sensitive data stored in phpinfo() via GetPhpInfo.php, including administrative credentials.
- Vendor
- ownCloud
- Product
- ownCloud graphapi
- Added to KEV
- November 30, 2023
- CISA due date
- December 21, 2023
- Ransomware use
- Unknown
- Weakness
- Not mapped by CISA
What CISA requires
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Forensic triage
No
What to do now
- Find every instance of ownCloud graphapi you run, including the forgotten ones, and check its version against the vendor advisory.
- Apply the vendor's fix or mitigation, before December 21, 2023 if you are bound by CISA's deadline, sooner if it faces the internet.
- Assume it was tried against you already: look for signs of exploitation from the date it was added, not from the day you patched.
References
H2 Security
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Start freeSource: CISA Known Exploited Vulnerabilities Catalog (public domain), catalog version 2026.10.01.