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.
Published: 2026-09-09
Score: 8.4 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

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'}

Subscriptions

B3log Siyuan
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

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

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

Link: CVE-2026-87815

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

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

Modified: 2026-09-09T12:17:16.537

Link: CVE-2026-87815

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-09T13:00:14Z

Weaknesses