{"answers":{"affected":"4 open source packages ship an affected version, including io.vertx:vertx-web. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-11966 exists.","fix":"Upgrade io.vertx:vertx-web to a fixed version for your release line: 4.5.22 or 5.0.5.","what":"CVE-2025-11966 is a low-severity cross-site scripting vulnerability in Eclipse Foundation Vert.x, published on 22 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-11966 and fix it if it is affected.\n\nWhat it is: CVE-2025-11966 is a low-severity cross-site scripting vulnerability in Eclipse Foundation Vert.x, published on 22 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-11966 exists.\n\nAffected packages and fixed versions:\n- io.vertx:vertx-web (Maven): affected all versions; fixed in 4.5.22\n- io.vertx:vertx-web (Maven): affected all versions; fixed in 4.5.22\n- io.vertx:vertx-web (Maven): affected from 5.0.0; fixed in 5.0.5\n- io.vertx:vertx-web (Maven): affected from 5.0.0; fixed in 5.0.5\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-2025-11966/ (Markdown: https://insights.sbomify.com/CVE-2025-11966/index.md)","id":"CVE-2025-11966","markdown":"https://insights.sbomify.com/CVE-2025-11966/index.md","name":"CVE-2025-11966","record":{"aliases":["CLEANSTART-2026-AL62330","CLEANSTART-2026-CW98636","CLEANSTART-2026-LY97922","ECHO-4377-3f2b-771f","GHSA-45p5-v273-3qqr","MINI-2v9v-h8mx-w265","MINI-7jg8-v5h2-rw44","MINI-jp94-29cx-2g33","MINI-vfcm-rqg3-fvqw","MINI-wxr5-w52p-3fhq","MINI-xgq9-3wgg-p433"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":true,"product_category":"Java web framework","requires_auth":"low_privilege","summary":"Stored XSS in Eclipse Vert.x directory listing allows attackers to execute scripts via crafted filenames when directory listing is enabled.","user_interaction":"not_required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"eclipse","cpe":[{"product":"vert.x","vendor":"eclipse"}],"cvss":{"score":2.3,"severity":"low","source":"cna","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","version":"4.0"},"cwes":[{"id":"CWE-80","name":"Improper Neutralization of Script-Related HTML Tags in a Web Page"},{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"In Eclipse Vert.x versions [4.0.0, 4.5.21] and [5.0.0, 5.0.4], when \"directory listing\" is enabled, file and directory names are inserted into generated HTML without proper escaping in the href, title, and link attributes. An attacker who can create or rename files or directories within a served path can craft filenames containing malicious script or HTML content, leading to stored cross-site scripting (XSS) that executes in the context of users viewing the affected directory listing.","ecosystems":["Maven"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"Vert.x-Web vulnerable to Stored Cross-site Scripting in directory listings via file names","id":"CVE-2025-11966","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":null,"products":[],"type":"xss","year":"2025"},"n_packages":4,"n_references":1,"next":{"headline":"Mail Mint \u003c= 1.18.10 - Authenticated (Admin+) Arbitrary File Upload","id":"CVE-2025-11967"},"packages":[{"ecosystem":"Maven","fixed":["4.5.22"],"introduced":["0"],"last_affected":[],"package":"io.vertx:vertx-web","purl":null,"source":"GHSA-45p5-v273-3qqr"},{"ecosystem":"Maven","fixed":["4.5.22"],"introduced":["0"],"last_affected":[],"package":"io.vertx:vertx-web","purl":"pkg:maven/io.vertx/vertx-web","source":"GHSA-45p5-v273-3qqr"},{"ecosystem":"Maven","fixed":["5.0.5"],"introduced":["5.0.0"],"last_affected":[],"package":"io.vertx:vertx-web","purl":null,"source":"GHSA-45p5-v273-3qqr"},{"ecosystem":"Maven","fixed":["5.0.5"],"introduced":["5.0.0"],"last_affected":[],"package":"io.vertx:vertx-web","purl":"pkg:maven/io.vertx/vertx-web","source":"GHSA-45p5-v273-3qqr"}],"prev":{"headline":"Vert.x-Web Access Control Flaw in StaticHandler’s Hidden File Protection for Files Under Hidden Directories","id":"CVE-2025-11965"},"products":["Vert.x"],"published":"2025-10-22","related":[{"cvss_score":9.8,"headline":"Path Traversal in Eclipse Vert","id":"CVE-2019-17640","kev_date_added":null,"published":"2020-10-15"},{"cvss_score":9.8,"headline":"Eclipse Vert.x does not properly neutralize '' (forward slashes) sequences that can resolve to an external location","id":"CVE-2018-12542","kev_date_added":null,"published":"2018-10-10"},{"cvss_score":9.8,"headline":"Moderate severity vulnerability that affects io.vertx:vertx-core","id":"CVE-2018-12544","kev_date_added":null,"published":"2018-10-10"},{"cvss_score":9.2,"headline":"Deserialization in Eclipse Vert.x","id":"CVE-2026-102469","kev_date_added":null,"published":"2026-10-15"},{"cvss_score":8.8,"headline":"High severity vulnerability that affects io.vertx:vertx-web","id":"CVE-2018-12540","kev_date_added":null,"published":"2018-07-12"},{"cvss_score":8.7,"headline":"Denial of service in Eclipse Vert.x","id":"CVE-2026-102461","kev_date_added":null,"published":"2026-10-15"},{"cvss_score":8.7,"headline":"Denial of service in Eclipse Vert.x","id":"CVE-2026-102467","kev_date_added":null,"published":"2026-10-15"}],"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":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-10-22","vendors":["Eclipse Foundation"]},"summary":"Stored XSS in Eclipse Vert.x directory listing allows attackers to execute scripts via crafted filenames when directory listing is enabled.","url":"https://insights.sbomify.com/CVE-2025-11966/"}