CVE Explorer

CVE-2026-23847

SiYuan is a personal knowledge management system. Versions prior to 3.5.4 are vulnerable to reflected cross-site scripting in /api/icon/getDynamicIcon due to unsanitized SVG input. The endpoint generates SVG images for text icons (type=8). The content query parameter is inserted directly into the SVG <text> tag without XML escaping. Since the response Content-Type is image/svg+xml, injecting unescaped tags allows breaking the XML structure and executing JavaScript. Version 3.5.4 patches the issu

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:44470c03d62a89af338a7b36d26d779b4a48511f6e8b74816166ca6f3a47e573

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"siyuan","vendor":"siyuan-note","versions":[{"status":"affected","version":"< 3.5.4"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:0276338cbe2fe4dc185ee55fb5356ebb360b235f109a49d4b97a490ee2d75432 · sha256:f63b4f7234bc8539… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":2.1,"baseSeverity":"LOW","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","userInteraction":"PASSIVE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:0276338cbe2fe4dc185ee55fb5356ebb360b235f109a49d4b97a490ee2d75432 · sha256:f63b4f7234bc8539… · /containers/cna/metrics/0/cvssV4_0

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:v2:0276338cbe2fe4dc185ee55fb5356ebb360b235f109a49d4b97a490ee2d75432 · sha256:f63b4f7234bc8539… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions

{"name":"https://github.com/siyuan-note/siyuan/commit/5c0cc375b47567e15edd2119066b09bb0aa18777","tags":["x_refsource_MISC"],"url":"https://github.com/siyuan-note/siyuan/commit/5c0cc375b47567e15edd2119066b09bb0aa18777"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:0276338cbe2fe4dc185ee55fb5356ebb360b235f109a49d4b97a490ee2d75432 · sha256:f63b4f7234bc8539… · /containers/cna/references/2

{"name":"https://github.com/siyuan-note/siyuan/issues/16844","tags":["x_refsource_MISC"],"url":"https://github.com/siyuan-note/siyuan/issues/16844"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:0276338cbe2fe4dc185ee55fb5356ebb360b235f109a49d4b97a490ee2d75432 · sha256:f63b4f7234bc8539… · /containers/cna/references/1

{"name":"https://github.com/siyuan-note/siyuan/security/advisories/GHSA-w836-5gpm-7r93","tags":["x_refsource_CONFIRM"],"url":"https://github.com/siyuan-note/siyuan/security/advisories/GHSA-w836-5gpm-7r93"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:0276338cbe2fe4dc185ee55fb5356ebb360b235f109a49d4b97a490ee2d75432 · sha256:f63b4f7234bc8539… · /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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