CVE Explorer
CVE-2026-34605
SiYuan is a personal knowledge management system. From version 3.6.0 to before version 3.6.2, the SanitizeSVG function introduced in version 3.6.0 to fix XSS in the unauthenticated /api/icon/getDynamicIcon endpoint can be bypassed by using namespace-prefixed element names such as <x:script xmlns:x="http://www.w3.org/2000/svg">. The Go HTML5 parser records the element's tag as "x:script" rather than "script", so the tag check passes it through. The SVG is served with Content-Type: image/svg+xml a
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":">= 3.6.0, < 3.6.2"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:3ec3ba92a2fbbac62a31b5528ed281d7499008a640430429600a95457e150c08 · sha256:e6ef26c3b80c3212… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.6,"baseSeverity":"HIGH","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"ACTIVE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"LOW","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:3ec3ba92a2fbbac62a31b5528ed281d7499008a640430429600a95457e150c08 · sha256:e6ef26c3b80c3212… · /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_v5cweurn:baitaphish:normalized-source-record:v2:3ec3ba92a2fbbac62a31b5528ed281d7499008a640430429600a95457e150c08 · sha256:e6ef26c3b80c3212… · /containers/cna/problemTypes/0/descriptions/0
Source references
3 source assertions{"name":"https://github.com/siyuan-note/siyuan/issues/17246","tags":["x_refsource_MISC"],"url":"https://github.com/siyuan-note/siyuan/issues/17246"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:3ec3ba92a2fbbac62a31b5528ed281d7499008a640430429600a95457e150c08 · sha256:e6ef26c3b80c3212… · /containers/cna/references/1
{"name":"https://github.com/siyuan-note/siyuan/releases/tag/v3.6.2","tags":["x_refsource_MISC"],"url":"https://github.com/siyuan-note/siyuan/releases/tag/v3.6.2"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:3ec3ba92a2fbbac62a31b5528ed281d7499008a640430429600a95457e150c08 · sha256:e6ef26c3b80c3212… · /containers/cna/references/2
{"name":"https://github.com/siyuan-note/siyuan/security/advisories/GHSA-73g7-86qr-jrg3","tags":["x_refsource_CONFIRM"],"url":"https://github.com/siyuan-note/siyuan/security/advisories/GHSA-73g7-86qr-jrg3"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:3ec3ba92a2fbbac62a31b5528ed281d7499008a640430429600a95457e150c08 · sha256:e6ef26c3b80c3212… · /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.