{"answers":{"affected":"4 open source packages ship an affected version, including com.vaadin:flow-server. It affects 2 products.","exploited":"There is no known exploitation of CVE-2019-25027 in the wild and no public exploit code.","fix":"Upgrade com.vaadin:flow-server to a fixed version for your release line: 1.0.11 or 1.4.3.","what":"CVE-2019-25027 is a medium-severity cross-site scripting vulnerability in Vaadin, published on 23 Apr 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2019-25027 and fix it if it is affected.\n\nWhat it is: CVE-2019-25027 is a medium-severity cross-site scripting vulnerability in Vaadin, published on 23 Apr 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2019-25027 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- com.vaadin:flow-server (Maven): affected from 1.0.0; fixed in 1.0.11\n- com.vaadin:flow-server (Maven): affected from 1.0.0; fixed in 1.0.11\n- com.vaadin:flow-server (Maven): affected from 1.1.0; fixed in 1.4.3\n- com.vaadin:flow-server (Maven): affected from 1.1.0; fixed in 1.4.3\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-2019-25027/ (Markdown: https://insights.sbomify.com/CVE-2019-25027/index.md)","id":"CVE-2019-25027","markdown":"https://insights.sbomify.com/CVE-2019-25027/index.md","name":"CVE-2019-25027","record":{"aliases":["GHSA-rp4x-wxqv-cf9m"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Vaadin flow-server","requires_auth":"none","summary":"Attackers can execute malicious JavaScript via crafted URLs due to missing output sanitization in the default RouteNotFoundError view of Vaadin flow-server.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Vaadin","cpe":[{"product":"flow","vendor":"vaadin"},{"product":"vaadin","vendor":"vaadin"}],"cvss":{"score":6.1,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"},{"id":"CWE-81","name":"Improper Neutralization of Script in an Error Message Web Page"}],"description":"Missing output sanitization in default RouteNotFoundError view in com.vaadin:flow-server versions 1.0.0 through 1.0.10 (Vaadin 10.0.0 through 10.0.13), and 1.1.0 through 1.4.2 (Vaadin 11.0.0 through 13.0.5) allows attacker to execute malicious JavaScript via crafted URL","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 default RouteNotFoundError view in Vaadin 10 and 11-13","id":"CVE-2019-25027","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":null,"products":[],"type":"xss","year":"2019"},"n_packages":4,"n_references":2,"next":{"headline":"Stored cross-site scripting in Grid component in Vaadin 7 and 8","id":"CVE-2019-25028"},"packages":[{"ecosystem":"Maven","fixed":["1.0.11"],"introduced":["1.0.0"],"last_affected":[],"package":"com.vaadin:flow-server","purl":null,"source":"GHSA-rp4x-wxqv-cf9m"},{"ecosystem":"Maven","fixed":["1.0.11"],"introduced":["1.0.0"],"last_affected":[],"package":"com.vaadin:flow-server","purl":"pkg:maven/com.vaadin/flow-server","source":"GHSA-rp4x-wxqv-cf9m"},{"ecosystem":"Maven","fixed":["1.4.3"],"introduced":["1.1.0"],"last_affected":[],"package":"com.vaadin:flow-server","purl":null,"source":"GHSA-rp4x-wxqv-cf9m"},{"ecosystem":"Maven","fixed":["1.4.3"],"introduced":["1.1.0"],"last_affected":[],"package":"com.vaadin:flow-server","purl":"pkg:maven/com.vaadin/flow-server","source":"GHSA-rp4x-wxqv-cf9m"}],"prev":{"headline":"Cross-site scripting in n/a","id":"CVE-2019-25026"},"products":["Vaadin","flow-server"],"published":"2021-04-23","related":[{"cvss_score":8.6,"headline":"Server classes and resources exposure in OSGi applications using Vaadin 12-14 and 19","id":"CVE-2021-31407","kev_date_added":null,"published":"2021-04-23"},{"cvss_score":7.5,"headline":"Regular expression denial of service (ReDoS) in EmailField component in Vaadin 14 and 15-17","id":"CVE-2021-31405","kev_date_added":null,"published":"2021-04-23"},{"cvss_score":6.3,"headline":"Insecure temporary directory usage in frontend build functionality of Vaadin 14 and 15-19","id":"CVE-2021-31411","kev_date_added":null,"published":"2021-05-05"},{"cvss_score":6.3,"headline":"Server session is not invalidated when logout() helper method of Authentication module is used in Vaadin 18-19","id":"CVE-2021-31408","kev_date_added":null,"published":"2021-04-23"},{"cvss_score":5.9,"headline":"Directory traversal in development mode handler in Vaadin 14 and 15-17","id":"CVE-2020-36321","kev_date_added":null,"published":"2021-04-23"},{"cvss_score":5.3,"headline":"Possible route enumeration in production mode via RouteNotFoundError view in Vaadin 10, 11-14, and 15-19","id":"CVE-2021-31412","kev_date_added":null,"published":"2021-06-24"}],"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 malicious JavaScript via crafted URLs due to missing output sanitization in the default RouteNotFoundError view of Vaadin flow-server.","url":"https://insights.sbomify.com/CVE-2019-25027/"}