CVE Explorer

CVE-2026-23852

SiYuan is a personal knowledge management system. Versions prior to 3.5.4 have a stored Cross-Site Scripting (XSS) vulnerability that allows an attacker to inject arbitrary HTML attributes into the `icon` attribute of a block via the `/api/attr/setBlockAttrs` API. The payload is later rendered in the dynamic icon feature in an unsanitized context, leading to stored XSS and, in the desktop environment, potential remote code execution (RCE). This issue bypasses the previous fix for issue `#15970`

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:6fa938d3238ac4a7fc256447167cdafefa508333650f5b9492d49a4a9d878143

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:v2:9ccf382e730b61028db44e59891882b99a813a4cceb2769648675dacd5294955 · sha256:299b819f4b18fab7… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.8,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","subAvailabilityImpact":"HIGH","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","userInteraction":"PASSIVE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H/E:P","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:9ccf382e730b61028db44e59891882b99a813a4cceb2769648675dacd5294955 · sha256:299b819f4b18fab7… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion

{"cweId":"CWE-94","description":"CWE-94: Improper Control of Generation of Code ('Code Injection')","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:9ccf382e730b61028db44e59891882b99a813a4cceb2769648675dacd5294955 · sha256:299b819f4b18fab7… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions

{"name":"https://github.com/siyuan-note/siyuan/commit/0be7e1d4e0da9aac0da850b7aeb9b50ede7e5bdb","tags":["x_refsource_MISC"],"url":"https://github.com/siyuan-note/siyuan/commit/0be7e1d4e0da9aac0da850b7aeb9b50ede7e5bdb"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:9ccf382e730b61028db44e59891882b99a813a4cceb2769648675dacd5294955 · sha256:299b819f4b18fab7… · /containers/cna/references/1

{"name":"https://github.com/siyuan-note/siyuan/security/advisories/GHSA-7c6g-g2hx-23vv","tags":["x_refsource_CONFIRM"],"url":"https://github.com/siyuan-note/siyuan/security/advisories/GHSA-7c6g-g2hx-23vv"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:9ccf382e730b61028db44e59891882b99a813a4cceb2769648675dacd5294955 · sha256:299b819f4b18fab7… · /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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