{"answers":{"affected":"2 open source packages ship an affected version, including budibase.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-46426 exists.","fix":"Upgrade budibase to 3.38.2 or later.","what":"CVE-2026-46426 is a high-severity cross-site scripting vulnerability in budibase, published on 27 May 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-2026-46426 and fix it if it is affected.\n\nWhat it is: CVE-2026-46426 is a high-severity cross-site scripting vulnerability in budibase, published on 27 May 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-2026-46426 exists.\n\nAffected packages and fixed versions:\n- budibase (npm): affected all versions; fixed in 3.38.2\n- budibase (npm): affected all versions; fixed in 3.38.2\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-2026-46426/ (Markdown: https://insights.sbomify.com/CVE-2026-46426/index.md)","id":"CVE-2026-46426","markdown":"https://insights.sbomify.com/CVE-2026-46426/index.md","name":"CVE-2026-46426","record":{"aliases":["GHSA-82rc-gxrg-v4gf"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Budibase low-code platform","requires_auth":"low_privilege","summary":"Authenticated builders can upload malicious scripts via file uploads, leading to persistent stored XSS affecting all application end users.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":7.6,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"},{"id":"CWE-434","name":"Unrestricted Upload of File with Dangerous Type"}],"description":"Budibase is an open-source low-code platform. Prior to 3.38.2, the file upload endpoint POST /api/attachments/process does not enforce active-content restrictions for authenticated users. The checks for dangerous file extensions are conditionally wrapped inside if (isPublicUser) or if (isPublicUser || !env.SELF_HOSTED), meaning any authenticated builder can upload executable web content — SVG files with inline \u003cscript\u003e tags, HTML pages with JavaScript, .js modules — which are then stored in the object store (MinIO/S3) with their correct MIME types. When the resulting signed URL is opened by any app user, the browser executes the payload. Impact is persistent stored XSS over all application end users. This vulnerability is fixed in 3.38.2.","ecosystems":["npm"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"Budibase: Unrestricted Upload of File with Dangerous Type","id":"CVE-2026-46426","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"xss","year":"2026"},"n_packages":2,"n_references":2,"next":{"headline":"Budibase: Snowflake private key returned unmasked from datasource API to BASIC users","id":"CVE-2026-46427"},"packages":[{"ecosystem":"npm","fixed":["3.38.2"],"introduced":["0"],"last_affected":[],"package":"budibase","purl":null,"source":"GHSA-82rc-gxrg-v4gf"},{"ecosystem":"npm","fixed":["3.38.2"],"introduced":["0"],"last_affected":[],"package":"budibase","purl":"pkg:npm/budibase","source":"GHSA-82rc-gxrg-v4gf"}],"prev":{"headline":"Budibase: SCIM endpoints lack role-based authorization, BASIC users CRUD tenant users","id":"CVE-2026-46425"},"products":["budibase"],"published":"2026-05-27","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"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":"partial"},"state":"PUBLISHED","updated":"2026-05-27","vendors":["Budibase"]},"summary":"Authenticated builders can upload malicious scripts via file uploads, leading to persistent stored XSS affecting all application end users.","url":"https://insights.sbomify.com/CVE-2026-46426/"}