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Back to active CVEs
High · CVSS 8.7CVE-2026-104410

SiYuan before 3.8.5 Information Disclosure via /api/export/preview

Answer in brief

CVE-2026-104410 records a High severity (CVSS 8.7) vulnerability in SiYuan before 3.8.5 Information Disclosure via /api/export/preview. The current sources do not mark it as known exploited. The current feed maps siyuan-note/siyuan (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 2, 2026Updated Oct 2, 2026Source checked Oct 2, 2026First seen by HOL Oct 2, 2026Material review Oct 2, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 8.7
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 8.7. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps siyuan-note/siyuan (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
siyuan-note/siyuangeneric>=0 <3.8.53.8.5

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for siyuan-note/siyuan.
  2. 2Review the reported fix. Update siyuan-note/siyuan to 3.8.5 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Oct 2, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 2, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 2, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • Source referencevulncheck.com
Upstream source description

SiYuan before 3.8.5 contains an information disclosure vulnerability that allows publish readers to read password-protected and publish-disabled database rows via the /api/export/preview endpoint. Attackers can request an export preview of a public document embedding a database view to obtain protected rows' primary-key text and cell values.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • WordPress Airano MCP Bridge plugin <= 2.11.0 - Broken Access Control vulnerabilityAlso CWE-862
  • WordPress WebSamurai plugin <= 1.0.7 - Broken Access Control vulnerabilityAlso CWE-862
  • WordPress LearnPress plugin <= 4.4.9.1 - Broken Access Control vulnerabilityAlso CWE-862
  • WordPress ThemeREX Addons plugin <= 2.46.0 - Server Side Request Forgery (SSRF) vulnerabilitySame generic ecosystem
  • WordPress ThemeREX Addons plugin <= 2.46.0 - Cross Site Scripting (XSS) vulnerabilitySame generic ecosystem
  • CISA ADP VulnrichmentSame generic ecosystem

Record context

Vulnerability class
Missing Auth
EPSS
Not reported
CWE IDs
CWE-862
Source
CVE List V5
Source checked
Oct 2, 2026
References
2 linked sources
Open source record