CVE-2026-87815
SiYuan before v3.8.2 Path Traversal via removeRiffDeck
- State
- Published
- Severity
- 8.4 High
- Published
- Sep 9, 2026
- Updated
- Sep 14, 2026
- Reserved
- Sep 9, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.4 High | 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 | VulnCheck |
| 3.1 | 8.7 High | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H | VulnCheck |
Weaknesses
- CWE-73 External Control of File Name or Path
Affected Products
| Product | Versions |
|---|---|
siyuansiyuan-note |
|
References
- GitHub Security Advisory (GHSA-94vh-rpgr-rpwc)vendor-advisory
- VulnCheck Advisory: SiYuan before v3.8.2 Path Traversal via removeRiffDeckthird-party-advisory
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