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CVE-2026-68586

SiYuan before v3.7.3 fails to apply publish-access filters to the getBacklinkDoc and getBackmentionDoc content endpoints (/api/ref/getBacklinkDoc and /api/ref/getBackmentionDoc). While the corresponding backlink list endpoints filter publish-forbidden documents, the content endpoints (gated only by CheckAuth) do not. A publish-mode reader — including an anonymous reader when publish Basic Auth is disabled — can call these endpoints directly with a publish-forbidden document's ID to retrieve its
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:622f1404284643e7f4fdfb8da0c1db88fa76b7347add586d3b5732865b8cc799
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 2 assertions

{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":9.2,"baseSeverity":"CRITICAL","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"HIGH","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:529b27bc6363ab53d22b023c9db5691c314003080ae38fce5c8ef33882a2f628 · sha256:807e9239b43cc3a2… · /containers/cna/metrics/0/cvssV4_0

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.6,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:529b27bc6363ab53d22b023c9db5691c314003080ae38fce5c8ef33882a2f628 · sha256:807e9239b43cc3a2… · /containers/cna/metrics/1/cvssV3_1

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","packageURL":"pkg:golang/github.com/siyuan-note/siyuan/kernel","product":"siyuan","vendor":"siyuan-note","versions":[{"lessThan":"3.7.3","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"3.7.3","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:529b27bc6363ab53d22b023c9db5691c314003080ae38fce5c8ef33882a2f628 · sha256:807e9239b43cc3a2… · /containers/cna/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":9.2,"baseSeverity":"CRITICAL","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"HIGH","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:529b27bc6363ab53d22b023c9db5691c314003080ae38fce5c8ef33882a2f628 · sha256:807e9239b43cc3a2… · /containers/cna/metrics/0/cvssV4_0
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.6,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:529b27bc6363ab53d22b023c9db5691c314003080ae38fce5c8ef33882a2f628 · sha256:807e9239b43cc3a2… · /containers/cna/metrics/1/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-862","description":"Missing Authorization","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:529b27bc6363ab53d22b023c9db5691c314003080ae38fce5c8ef33882a2f628 · sha256:807e9239b43cc3a2… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"name":"GitHub Security Advisory (GHSA-36v8-mpjm-8j5r)","tags":["vendor-advisory"],"url":"https://github.com/siyuan-note/siyuan/security/advisories/GHSA-36v8-mpjm-8j5r"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:529b27bc6363ab53d22b023c9db5691c314003080ae38fce5c8ef33882a2f628 · sha256:807e9239b43cc3a2… · /containers/cna/references/0
{"name":"VulnCheck Advisory: SiYuan before v3.7.3 Content Disclosure via getBacklinkDoc","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/siyuan-before-content-disclosure-via-getbacklinkdoc"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:529b27bc6363ab53d22b023c9db5691c314003080ae38fce5c8ef33882a2f628 · sha256:807e9239b43cc3a2… · /containers/cna/references/1

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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