ONLYOFFICE's ownCloud integration plugin 9.12 has an SSRF flaw (CVE-2026-84282) letting authenticated admins probe internal networks; no patch exists yet.
Threat actors exploited old unpatched ownCloud vulnerabilities to breach the Philippines nuclear agency, stealing reactor databases, personnel records, and credentials.
Suspected Chinese-speaking operator breached Philippine nuclear research and naval supplier systems via ownCloud CVE-2023-49103 and WordPress CVE-2024-28000.
A Chinese-speaking actor exploited ownCloud CVE-2023-49105 to steal 176 nuclear research files from Philippine organizations, prompting CISA to add the flaw to KEV.
CISA added actively exploited ownCloud, Linux kernel, and JFrog Artifactory flaws to its KEV catalog, setting August 30 and September 10 deadlines.
CISA added three actively exploited vulnerabilities to its KEV catalog: CVE-2023-49105 (ownCloud), CVE-2026-53362 (Linux kernel), and CVE-2026-66384 (JFrog Artifactory).