9.1
CVE-2026-25539
- EPSS 1.02%
- Veröffentlicht 04.02.2026 21:39:12
- Zuletzt bearbeitet 11.02.2026 19:10:21
- Quelle security-advisories@github.com
- CVE-Watchlists
- Unerledigt
LoginSiYuan has Arbitrary File Write via /api/file/copyFile leading to RCE
SiYuan is a personal knowledge management system. Prior to version 3.5.5, the /api/file/copyFile endpoint does not validate the dest parameter, allowing authenticated users to write files to arbitrary locations on the filesystem. This can lead to Remote Code Execution (RCE) by writing to sensitive locations such as cron jobs, SSH authorized_keys, or shell configuration files. This issue has been patched in version 3.5.5.
| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 1.02% | 0.588 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| nvd@nist.gov | 7.2 | 1.2 | 5.9 |
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
|
| security-advisories@github.com | 9.1 | 2.3 | 6 |
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
|
CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-c4jr-5q7w-f6r9
https://github.com/siyuan-note/siyuan/commit/d7f790755edf8c78d2b4176171e5a0cdcd720feb