SiYuan versions before v3.8.2 contain a path traversal vulnerability in the /api/riff/removeRiffDeck endpoint that fails to validate the deckID parameter. An authenticated administrator can supply path traversal sequences to delete arbitrary .deck and .cards files outside the workspace directory.
History

Mon, 14 Sep 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Sun, 13 Sep 2026 20:00:00 +0000

Type Values Removed Values Added
First Time appeared Siyuan
Siyuan siyuan
Vendors & Products Siyuan
Siyuan siyuan

Wed, 09 Sep 2026 11:30:00 +0000

Type Values Removed Values Added
Description SiYuan versions before v3.8.2 contain a path traversal vulnerability in the /api/riff/removeRiffDeck endpoint that fails to validate the deckID parameter. An authenticated administrator can supply path traversal sequences to delete arbitrary .deck and .cards files outside the workspace directory.
Title SiYuan before v3.8.2 Path Traversal via removeRiffDeck
First Time appeared B3log
B3log siyuan
Weaknesses CWE-73
CPEs cpe:2.3:a:b3log:siyuan:*:*:*:*:*:*:*:*
Vendors & Products B3log
B3log siyuan
References
Metrics cvssV3_1

{'score': 8.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H'}

cvssV4_0

{'score': 8.4, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-09-09T11:21:02.630Z

Updated: 2026-09-14T13:08:07.201Z

Reserved: 2026-09-09T10:30:15.670Z

Link: CVE-2026-87815

cve-icon Vulnrichment

Updated: 2026-09-14T13:08:01.874Z

cve-icon NVD

Status : Deferred

Published: 2026-09-09T12:17:16.537

Modified: 2026-09-14T14:17:17.650

Link: CVE-2026-87815

cve-icon Redhat

No data.