{"id":"CVE-2021-20293","aliases":["EUVD-2021-1269","GHSA-5h26-c766-g93v","UBUNTU-CVE-2021-20293"],"status":"published","title":"Cross-Site Scripting","description":"A reflected Cross-Site Scripting (XSS) flaw was found in RESTEasy in all versions of RESTEasy up to 4.6.0.Final, where it did not properly handle URL encoding when calling @javax.ws.rs.PathParam without any @Produces MediaType. This flaw allows an attacker to launch a reflected XSS attack. The highest threat from this vulnerability is to data confidentiality and integrity.","severity":{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00856,"percentile":0.58642,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2021-06-10T11:09:47Z","modified":"2026-10-24T10:30:51Z","affected":[{"source":"ghsa","ecosystem":"Maven","package":"org.jboss.resteasy:resteasy-bom","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"4.6.0.Final"}]}]},{"source":"ghsa","ecosystem":"Maven","package":"org.jboss.resteasy:resteasy-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"4.6.0.Final"}]}]},{"source":"osv","ecosystem":"Maven","package":"org.jboss.resteasy:resteasy-bom","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"4.6.0.Final"}]}],"versions":["1.2.1.GA","1.2.GA","2.0-RC1","2.0-beta-1","2.0-beta-2","2.0-beta-3","2.0-beta-4","2.0.0.GA","2.0.1.GA","2.1-beta-1","2.1.0.GA","2.2-RC-1","2.2-beta-1","2.2.0.GA","2.2.1.GA","2.2.2.GA","2.2.3.GA","2.3-RC1","2.3-beta-1","2.3.0.GA","2.3.1.GA","2.3.10.Final","2.3.2.Final","2.3.3.Final","2.3.4.Final","2.3.5.Final","2.3.6.Final","2.3.7.Final","3.0-beta-1","3.0-beta-2","3.0-beta-3","3.0-beta-4","3.0-beta-5","3.0-beta-6","3.0-rc-1","3.0.0.Final","3.0.1.Final","3.0.10.Final","3.0.11.Final","3.0.12.Final","3.0.13.Final","3.0.14.Final","3.0.15.Final","3.0.16.Final","3.0.17.Final","3.0.18.Final","3.0.19.Final","3.0.2.Final","3.0.20.Final","3.0.21.Final","3.0.22.Final","3.0.23.Final","3.0.24.Final","3.0.26.Final","3.0.3.Final","3.0.4.Final","3.0.5.Final","3.0.6.Final","3.0.7.Final","3.0.8.Final","3.0.9.Final","3.1.0.Beta1","3.1.0.Beta2","3.1.0.CR1","3.1.0.CR2","3.1.0.CR3","3.1.0.Final","3.1.1.Final","3.1.2.Final","3.1.3.Final","3.1.4.Final","3.10.0.Final","3.11.0.Final","3.11.1.Final","3.11.2.Final","3.11.3.Final","3.11.4.Final","3.11.5.Final","3.12.0.Final","3.12.1.Final","3.13.0.Final","3.13.1.Final","3.13.2.Final","3.14.0.Final","3.15.0.Alpha1","3.15.0.Final","3.15.1.Final","3.15.2.Final","3.15.3.Final","3.15.6.Final","3.5.0.CR1","3.5.0.CR2","3.5.0.CR3","3.5.0.CR4","3.5.0.Final","3.5.1.Final","3.6.0.CR1","3.6.0.Final","3.6.1.Final","3.6.1.SP1","3.6.1.SP2","3.6.1.SP3","3.6.1.SP5","3.6.1.SP6","3.6.1.SP7","3.6.1.SP8","3.6.2.Final","3.6.3.Final","3.6.3.SP1","3.7.0.Final","3.8.0.Final","3.8.1.Final","3.9.0.Final","3.9.1.Final","3.9.2.Final","3.9.3.Final","3.9.3.SP1","4.0.0.Beta1","4.0.0.Beta2","4.0.0.Beta3","4.0.0.Beta4","4.0.0.Beta5","4.0.0.Beta6","4.0.0.Beta7","4.0.0.Beta8","4.0.0.CR1","4.0.0.CR2","4.0.0.CR3","4.0.0.Final","4.1.0.Final","4.1.1.Final","4.2.0.Final","4.3.0.Final","4.3.1.Final","4.4.0.CR1","4.4.0.Final","4.4.1.Final","4.4.2.Final","4.4.3.Final","4.5.0.Final","4.5.1.Final","4.5.10.Final","4.5.11.Final","4.5.12.Beta1","4.5.12.Final","4.5.2.Final","4.5.3.Final","4.5.4.Final","4.5.5.Final","4.5.6.Final","4.5.7.Final","4.5.8.Final","4.5.8.SP1","4.5.9.Final","4.6.0.Final"]},{"source":"osv","ecosystem":"Maven","package":"org.jboss.resteasy:resteasy-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"4.6.0.Final"}]}],"versions":["4.0.0.Beta6","4.0.0.Beta7","4.0.0.Beta8","4.0.0.CR1","4.0.0.CR2","4.0.0.CR3","4.0.0.Final","4.1.0.Final","4.1.1.Final","4.2.0.Final","4.3.0.Final","4.3.1.Final","4.4.0.CR1","4.4.0.Final","4.4.1.Final","4.4.2.Final","4.4.3.Final","4.5.0.Final","4.5.1.Final","4.5.10.Final","4.5.11.Final","4.5.12.Beta1","4.5.12.Final","4.5.2.Final","4.5.3.Final","4.5.4.Final","4.5.5.Final","4.5.6.Final","4.5.7.Final","4.5.8.Final","4.5.8.SP1","4.5.9.Final","4.6.0.Final"]}],"products":[{"vendor":"netapp","product":"oncommand_insight"},{"vendor":"red hat","product":"resteasy"},{"vendor":"redhat","product":"resteasy"}],"references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1942819","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Vendor Advisory","report","web"]},{"url":"https://security.netapp.com/advisory/ntap-20210727-0005/","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-20293","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-5h26-c766-g93v"},{"url":"https://security.netapp.com/advisory/ntap-20210727-0005","tags":["web"]},{"url":"https://ubuntu.com/security/CVE-2021-20293","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-20293","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2021-20293","description":"A reflected Cross-Site Scripting (XSS) flaw was found in RESTEasy in all versions of RESTEasy up to 4.6.0.Final, where it did not properly handle URL encoding when calling @javax.ws.rs.PathParam without any @Produces MediaType. This flaw allows an attacker to launch a reflected XSS attack. The highest threat from this vulnerability is to data confidentiality and integrity.","status":"published","published":"2021-06-10T11:09:47Z","modified":"2024-08-03T17:37:24.125Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:32:55.564736Z"}],"euvd":[{"id":"EUVD-2021-1269","description":"A reflected Cross-Site Scripting (XSS) flaw was found in RESTEasy in all versions of RESTEasy up to 4.6.0.Final, where it did not properly handle URL encoding when calling @javax.ws.rs.PathParam without any @Produces MediaType. This flaw allows an attacker to launch a reflected XSS attack. The highest threat from this vulnerability is to data confidentiality and integrity.","status":"published","published":"2021-06-10T11:09:47Z","modified":"2024-08-03T17:37:24Z","updated_at":"2026-11-03T03:25:08.888273Z"}],"ghsa":[{"id":"GHSA-5h26-c766-g93v","title":"Cross-Site Scripting","description":"A reflected Cross-Site Scripting (XSS) flaw was found in RESTEasy in all versions of RESTEasy up to 4.6.0.Final, where it did not properly handle URL encoding when calling @javax.ws.rs.PathParam without any @Produces MediaType. This flaw allows an attacker to launch a reflected XSS attack. The highest threat from this vulnerability is to data confidentiality and integrity.","status":"published","published":"2021-06-15T15:59:27Z","modified":"2023-02-01T05:05:48Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:36:35.781528Z"}],"nvd":[{"id":"CVE-2021-20293","description":"A reflected Cross-Site Scripting (XSS) flaw was found in RESTEasy in all versions of RESTEasy up to 4.6.0.Final, where it did not properly handle URL encoding when calling @javax.ws.rs.PathParam without any @Produces MediaType. This flaw allows an attacker to launch a reflected XSS attack. The highest threat from this vulnerability is to data confidentiality and integrity.","status":"published","published":"2021-06-10T12:15:07.947Z","modified":"2026-06-17T03:33:37.257Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:06:54.439974Z"}],"osv":[{"id":"CVE-2021-20293","description":"A reflected Cross-Site Scripting (XSS) flaw was found in RESTEasy in all versions of RESTEasy up to 4.6.0.Final, where it did not properly handle URL encoding when calling @javax.ws.rs.PathParam without any @Produces MediaType. This flaw allows an attacker to launch a reflected XSS attack. The highest threat from this vulnerability is to data confidentiality and integrity.","status":"published","published":"2021-06-10T12:15:07.947Z","modified":"2026-10-24T10:30:51.373812729Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:18.004149Z"},{"id":"GHSA-5h26-c766-g93v","title":"Cross-Site Scripting","description":"A reflected Cross-Site Scripting (XSS) flaw was found in RESTEasy in all versions of RESTEasy up to 4.6.0.Final, where it did not properly handle URL encoding when calling @javax.ws.rs.PathParam without any @Produces MediaType. This flaw allows an attacker to launch a reflected XSS attack. The highest threat from this vulnerability is to data confidentiality and integrity.","status":"published","published":"2021-06-15T15:59:27Z","modified":"2024-02-17T05:36:30.211027Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:46:38.553953Z"},{"id":"UBUNTU-CVE-2021-20293","description":"A reflected Cross-Site Scripting (XSS) flaw was found in RESTEasy in all versions of RESTEasy up to 4.6.0.Final, where it did not properly handle URL encoding when calling @javax.ws.rs.PathParam without any @Produces MediaType. This flaw allows an attacker to launch a reflected XSS attack. The highest threat from this vulnerability is to data confidentiality and integrity.","status":"withdrawn","published":"2021-06-10T12:15:00Z","modified":"2025-07-14T06:45:31.824383Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:54:25.728622Z"}]}}