cve.bz

CVE-2026-23847

2.1 lowEPSS 0.3%

Low (2.1) in b3log siyuan. EPSS 0.3% chance of exploitation in the next 30 days. Fixed in github.com/siyuan-note/siyuan/kernel 0.0.0-20260118021606-5c0cc375b475.

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 issue.]

Severity

CVSS 4.0

2.1 low
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

CVSS 3.1

6.1 medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS
0.3% chance of exploitation in the next 30 days; higher than 24% of CVEs (scores of 2026-10-31)
CWE
CWE-79
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-w836-5gpm-7r93Gogithub.com/siyuan-note/siyuan/kernel<0.0.0-20260118021606-5c0cc375b4750.0.0-20260118021606-5c0cc375b475
GO-2026-4343Gogithub.com/siyuan-note/siyuan/kernel<0.0.0-20260118021606-5c0cc375b4750.0.0-20260118021606-5c0cc375b475

References

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