{"cve":"CVE-2025-11966","nvd":{"published":"2025-10-22T15:15:31.730","modified":"2026-10-08T11:10:00.250","status":"Analyzed","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.","cvss_v4":{"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","score":2.3},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","score":6.4},"cwes":["CWE-79","CWE-80"],"references":["https://gitlab.eclipse.org/security/vulnerability-reports/-/issues/303"],"products":["eclipse:vert.x"],"source":"nvd","synced_at":"2026-10-19T22:12:35.277909958+00:00"},"epss":{"cve":"CVE-2025-11966","score":0.00291,"percentile":0.2147,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-45p5-v273-3qqr","url":"https://osv.dev/vulnerability/GHSA-45p5-v273-3qqr","summary":"Vert.x-Web vulnerable to Stored Cross-site Scripting in directory listings via file names","modified":"2026-09-10T03:50:29.197669732Z","packages":[{"ecosystem":"Maven","name":"io.vertx:vertx-web","purl":"pkg:maven/io.vertx/vertx-web","ranges":["<4.5.22"],"fixed":["4.5.22"]},{"ecosystem":"Maven","name":"io.vertx:vertx-web","purl":"pkg:maven/io.vertx/vertx-web","ranges":[">=5.0.0 <5.0.5"],"fixed":["5.0.5"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}