{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-100645 exists.","fix":"No fix has been published for CVE-2026-100645 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-100645 is a high-severity cross-site scripting vulnerability in siyuan-note siyuan, published on 26 Sep 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-100645 and fix it if it is affected.\n\nWhat it is: CVE-2026-100645 is a high-severity cross-site scripting vulnerability in siyuan-note siyuan, published on 26 Sep 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-100645 exists.\n\nAffected product: siyuan-note siyuan. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-100645/ (Markdown: https://insights.sbomify.com/CVE-2026-100645/index.md)","id":"CVE-2026-100645","markdown":"https://insights.sbomify.com/CVE-2026-100645/index.md","name":"CVE-2026-100645","record":{"aliases":["GHSA-556j-q8c8-qqg3","GHSA-rqqw-4x86-32vh"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":true,"product_category":"SiYuan note-taking app","requires_auth":"low_privilege","summary":"Attackers can execute arbitrary commands via stored XSS in SiYuan's gallery and kanban renderers when nodeIntegration is enabled.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":8.6,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"SiYuan versions 3.7.0 before 3.8.4 contain a stored cross-site scripting vulnerability in gallery and kanban database renderers where field descriptions are not escaped in aria-label attributes. In the Electron desktop app with nodeIntegration enabled, attackers can inject JavaScript that calls Node.js child_process APIs to execute arbitrary commands with user privileges.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"SiYuan 3.7.0 before 3.8.4 Stored XSS via Gallery Kanban","id":"CVE-2026-100645","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"SiYuan before v3.8.4 Authentication Bypass via Missing Origin Header","id":"CVE-2026-100646"},"packages":[],"prev":{"headline":"SiYuan before v3.8.4 SQL Injection via dailyNoteSavePath","id":"CVE-2026-100644"},"products":["siyuan"],"published":"2026-09-26","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-08","vendors":["siyuan-note"]},"summary":"Attackers can execute arbitrary commands via stored XSS in SiYuan's gallery and kanban renderers when nodeIntegration is enabled.","url":"https://insights.sbomify.com/CVE-2026-100645/"}