Threats Tagged 'cve-2026-25539'
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Threats Tagged 'cve-2026-25539'
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0 CVE-2026-25539 is a critical path traversal vulnerability in the SiYuan personal knowledge management system versions prior to 3.5.5. The flaw exists in the /api/file/copyFile endpoint, where the dest parameter is not properly validated, allowing authenticated users to write files to arbitrary filesystem locations. Exploitation can lead to remote code execution by overwriting sensitive files such as cron jobs, SSH authorized_keys, or shell configuration files. The vulnerability requires authentication but no user interaction and has a CVSS score of 9.1, reflecting its high impact on confidentiality, integrity, and availability. Although no known exploits are reported in the wild, the issue is severe and has been patched in version 3.5.5. Join the discussion | CVE Database V5 | 02/04/2026, 21:39:12 UTC Added: 02/04/2026, 22:00:09 UTC |
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