CVE-2026-40259

🗓️ 16 Apr 2026 22:49:36Reported by GitHub_MType

cve🔗 web.nvd.nist.gov👁 11 Views🌐 WEB

SiYuan readers can delete arbitrary attribute view files via removeUnusedAttributeView due to weak auth; fixed in 3.6.4.

Reporter	Title	Published	Views	Family All 11
ATTACKERKB	CVE-2026-40259	16 Apr 202622:49	–	attackerkb
Circl	CVE-2026-40259	10 Apr 202609:32	–	circl
CNNVD	SiYuan 安全漏洞	16 Apr 202600:00	–	cnnvd
Cvelist	CVE-2026-40259 SiYuan: Publish Reader Can Arbitrarily Delete Attribute View Files via removeUnusedAttributeView API	16 Apr 202622:49	–	cvelist
Github Security Blog	SiYuan: Publish Reader Can Arbitrarily Delete Attribute View Files via `/api/av/removeUnusedAttributeView`	10 Apr 202619:32	–	github
NVD	CVE-2026-40259	16 Apr 202623:16	–	nvd
OSV	GHSA-7M5H-W69J-QGGG SiYuan: Publish Reader Can Arbitrarily Delete Attribute View Files via `/api/av/removeUnusedAttributeView`	10 Apr 202619:32	–	osv
Positive Technologies	PT-2026-32054	10 Apr 202600:00	–	ptsecurity
RedhatCVE	CVE-2026-40259	20 Apr 202619:22	–	redhatcve
Snyk	Improper Authorization	10 Apr 202619:32	–	snyk

NVD

Vulners

Node

b3log siyuanRange<3.6.4

[
  {
    "vendor": "siyuan-note",
    "product": "siyuan",
    "versions": [
      {
        "version": "< 0.0.0-20260407035653-2f416e5253f1",
        "status": "affected"
      },
      {
        "version": "< 3.6.4",
        "status": "affected"
      }
    ]
  }
]

Source	Link
github	www.github.com/siyuan-note/siyuan/security/advisories/GHSA-7m5h-w69j-qggg
github	www.github.com/siyuan-note/siyuan/releases/tag/v3.6.4

Parameter	Position	Path	Description	CWE
id	request body	/api/av/removeUnusedAttributeView	Endpoint vulnerable to unauthorized deletion: caller-controlled id is passed to a function that deletes attribute view files without verifying write privileges, allowing authenticated publish-service readers to delete arbitrary attribute views.	CWE-285

17 Jun 2026 10:44Current

5.9Medium risk

Vulners AI Score5.9

CVSS 3.18.1

EPSS0.004

SSVC

CWE-285