{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-82654 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-82654 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-82654 is a critical cross-site scripting vulnerability in siyuan-note siyuan, published on 30 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-2026-82654 and fix it if it is affected.\n\nWhat it is: CVE-2026-82654 is a critical cross-site scripting vulnerability in siyuan-note siyuan, published on 30 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: There is no known exploitation of CVE-2026-82654 in the wild and no public exploit code.\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-2026-82654/ (Markdown: https://insights.sbomify.com/CVE-2026-82654/index.md)","id":"CVE-2026-82654","markdown":"https://insights.sbomify.com/CVE-2026-82654/index.md","name":"CVE-2026-82654","record":{"aliases":["GHSA-5x6r-p3h7-38vj","GHSA-hf87-qh3j-3p88"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"SiYuan note-taking app","requires_auth":"low_privilege","summary":"Attackers can inject malicious scripts via block names that execute when other users view related documents in SiYuan.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":9.3,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L","version":"4.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"SiYuan before v3.8.1 fails to properly escape block name, alias, and memo fields in hint, backlink, and breadcrumb rendering functions. Attackers can set a block's name to contain HTML/script tags that execute when another user views documents referencing or displaying that block.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"SiYuan before v3.8.1 Stored XSS via block name","id":"CVE-2026-82654","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Admidio before 5.0.12 SQL Injection via relation_type_list","id":"CVE-2026-82655"},"packages":[],"prev":{"headline":"SiYuan before v3.8.1 Stored XSS via confirmDialog","id":"CVE-2026-82653"},"products":["siyuan"],"published":"2026-08-30","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":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-09-01","vendors":["siyuan-note"]},"summary":"Attackers can inject malicious scripts via block names that execute when other users view related documents in SiYuan.","url":"https://insights.sbomify.com/CVE-2026-82654/"}