{"answers":{"affected":"4 open source packages ship an affected version, including com.vaadin:vaadin-bom. It affects 2 products.","exploited":"There is no known exploitation of CVE-2021-33604 in the wild and no public exploit code.","fix":"Upgrade com.vaadin:vaadin-bom to a fixed version for your release line: 14.6.2 or 19.0.9.","what":"CVE-2021-33604 is a low-severity cross-site scripting vulnerability in Vaadin, published on 24 Jun 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2021-33604 and fix it if it is affected.\n\nWhat it is: CVE-2021-33604 is a low-severity cross-site scripting vulnerability in Vaadin, published on 24 Jun 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2021-33604 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- com.vaadin:vaadin-bom (Maven): affected from 14.0.0; fixed in 14.6.2\n- com.vaadin:vaadin-bom (Maven): affected from 14.0.0; fixed in 14.6.2\n- com.vaadin:vaadin-bom (Maven): affected from 15.0.0; fixed in 19.0.9\n- com.vaadin:vaadin-bom (Maven): affected from 15.0.0; fixed in 19.0.9\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-2021-33604/ (Markdown: https://insights.sbomify.com/CVE-2021-33604/index.md)","id":"CVE-2021-33604","markdown":"https://insights.sbomify.com/CVE-2021-33604/index.md","name":"CVE-2021-33604","record":{"aliases":["GHSA-c99r-67x4-whj6"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Vaadin Java framework","requires_auth":"none","summary":"Attackers can execute arbitrary JavaScript via crafted URLs in Vaadin development mode, requiring the feature to be enabled.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Vaadin","cpe":[{"product":"flow-server","vendor":"vaadin"},{"product":"vaadin","vendor":"vaadin"}],"cvss":{"score":2.5,"severity":"low","source":"cna","vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-172","name":"Improper Encoding or Decoding of Data"}],"description":"URL encoding error in development mode handler in com.vaadin:flow-server versions 2.0.0 through 2.6.1 (Vaadin 14.0.0 through 14.6.1), 3.0.0 through 6.0.9 (Vaadin 15.0.0 through 19.0.8) allows local user to execute arbitrary JavaScript code by opening crafted URL in browser.","ecosystems":["Maven"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Reflected cross-site scripting in development mode handler in Vaadin 14, 15-19","id":"CVE-2021-33604","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":null,"products":[],"type":"xss","year":"2021"},"n_packages":4,"n_references":2,"next":{"headline":"Unauthorized property update in CheckboxGroup component in Vaadin 12-14 and 15-20","id":"CVE-2021-33605"},"packages":[{"ecosystem":"Maven","fixed":["14.6.2"],"introduced":["14.0.0"],"last_affected":[],"package":"com.vaadin:vaadin-bom","purl":null,"source":"GHSA-c99r-67x4-whj6"},{"ecosystem":"Maven","fixed":["14.6.2"],"introduced":["14.0.0"],"last_affected":[],"package":"com.vaadin:vaadin-bom","purl":"pkg:maven/com.vaadin/vaadin-bom","source":"GHSA-c99r-67x4-whj6"},{"ecosystem":"Maven","fixed":["19.0.9"],"introduced":["15.0.0"],"last_affected":[],"package":"com.vaadin:vaadin-bom","purl":null,"source":"GHSA-c99r-67x4-whj6"},{"ecosystem":"Maven","fixed":["19.0.9"],"introduced":["15.0.0"],"last_affected":[],"package":"com.vaadin:vaadin-bom","purl":"pkg:maven/com.vaadin/vaadin-bom","source":"GHSA-c99r-67x4-whj6"}],"prev":{"headline":"Denial-of-Service (DoS) Vulnerability","id":"CVE-2021-33603"},"products":["Vaadin","flow-server"],"published":"2021-06-24","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":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-09-17","vendors":["Vaadin"]},"summary":"Attackers can execute arbitrary JavaScript via crafted URLs in Vaadin development mode, requiring the feature to be enabled.","url":"https://insights.sbomify.com/CVE-2021-33604/"}