CVE-2026-87815CWE-73

CVE-2026-87815

High · published September 9, 2026

CVSS v3.1
8.7
EPSS
0%
Percentile
40.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.7 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H
CVSS v4.0
8.4 · 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
EPSS
0.00479 · 40.4th percentile
Weakness
CWE-73 · External Control of File Name or Path
Published
2026-09-09T16:17Z
References (3)
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-94vh-rpgr-rpwc · [email protected]https://www.vulncheck.com/advisories/siyuan-before-3.8.2-path-traversal-via-removeriffdeck · [email protected]https://github.com/siyuan-note/siyuan/security/advisories/GHSA-94vh-rpgr-rpwc · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 11 SEP 03:19Z
    EPSS moved — → 0%
    epss
  • 09 SEP 11:21Z
    SiYuan before v3.8.2 Path Traversal via removeRiffDeck
    cvelistv5