{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-73053 exists.","fix":"No fix has been published for CVE-2026-73053 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-73053 is a critical cross-site scripting vulnerability in siyuan-note siyuan, published on 15 Aug 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-2026-73053 and fix it if it is affected.\n\nWhat it is: CVE-2026-73053 is a critical cross-site scripting vulnerability in siyuan-note siyuan, published on 15 Aug 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-2026-73053 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-2026-73053/ (Markdown: https://insights.sbomify.com/CVE-2026-73053/index.md)","id":"CVE-2026-73053","markdown":"https://insights.sbomify.com/CVE-2026-73053/index.md","name":"CVE-2026-73053","record":{"aliases":["GHSA-qh5w-p4pr-mhpj"],"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 code on the host system via crafted document icons in SiYuan when Node integration is enabled.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":9.4,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","version":"4.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"SiYuan versions before v3.7.4 contain a cross-site scripting vulnerability in the unicode2Emoji function that fails to sanitize codepoint branch output. Attackers can craft document icons with hex-encoded markup that executes in the renderer with Node integration enabled, achieving arbitrary code execution on the host system.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":null,"headline":"SiYuan before v3.7.4 Cross-Site Scripting via unicode2Emoji","id":"CVE-2026-73053","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 v3.7.4 Authentication Bypass via WebSocket","id":"CVE-2026-73054"},"packages":[],"prev":{"headline":"SiYuan before v3.7.4 Stored XSS via Attribute-View Field Names","id":"CVE-2026-73052"},"products":["siyuan"],"published":"2026-08-15","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":"2026-08-18","vendors":["siyuan-note"]},"summary":"Attackers can execute arbitrary code on the host system via crafted document icons in SiYuan when Node integration is enabled.","url":"https://insights.sbomify.com/CVE-2026-73053/"}