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Known exploited vulnerabilities

ownCloud vulnerabilities attackers have used

Every ownCloud vulnerability in CISA's Known Exploited Vulnerabilities catalog, newest first, with the federal due date and whether it fed ransomware campaigns.

The short answer

CISA lists 2 ownCloud vulnerabilities as exploited in the wild, 1 of them added in the last 12 months. The most recent is CVE-2023-49105, added Aug 27, 2026. ownCloud has the most entries (1).

In KEV, all time
2
Added, last 12 months
1
Used in ransomware
0
New CVEs this week
0

By product

ownCloud (1), ownCloud graphapi (1).

Every ownCloud entry in CISA KEV

  1. CVE-2023-49105

    Added · due

    ownCloud Improper Authentication Vulnerability

    ownCloud contains an improper authentication vulnerability that allows an attacker to access, modify, or delete any file without authentication if the username of a victim is known, and the victim has no signing-key configured.

  2. CVE-2023-49103

    Added · due

    ownCloud graphapi Information Disclosure Vulnerability

    ownCloud graphapi contains an information disclosure vulnerability that can reveal sensitive data stored in phpinfo() via GetPhpInfo.php, including administrative credentials.

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