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CVE-2026-29183

SiYuan is a personal knowledge management system. Prior to version 3.5.9, an unauthenticated reflected XSS vulnerability exists in the dynamic icon API endpoint "GET /api/icon/getDynamicIcon" when type=8, attacker-controlled content is embedded into SVG output without escaping. Because the endpoint is unauthenticated and returns image/svg+xml, a crafted URL can inject executable SVG/HTML event handlers (for example onerror) and run JavaScript in the SiYuan web origin. This can be chained to perf
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:1d2b94c32669ae14d0100a6a111f0c5e97575897bf8e43c793320276b3c398c6
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"siyuan","vendor":"siyuan-note","versions":[{"status":"affected","version":"< 3.5.9"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:a67ec783c09ff3757e00e2f1359d187f3667d733776e4b7c61b815c133f880f1 · sha256:7c9c815d51945c4a… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":9.3,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:a67ec783c09ff3757e00e2f1359d187f3667d733776e4b7c61b815c133f880f1 · sha256:7c9c815d51945c4a… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-79","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:a67ec783c09ff3757e00e2f1359d187f3667d733776e4b7c61b815c133f880f1 · sha256:7c9c815d51945c4a… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"name":"https://github.com/siyuan-note/siyuan/security/advisories/GHSA-6865-qjcf-286f","tags":["x_refsource_CONFIRM"],"url":"https://github.com/siyuan-note/siyuan/security/advisories/GHSA-6865-qjcf-286f"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a67ec783c09ff3757e00e2f1359d187f3667d733776e4b7c61b815c133f880f1 · sha256:7c9c815d51945c4a… · /containers/cna/references/0

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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