{"id":"CVE-2021-4296","aliases":["EUVD-2021-34132","GHSA-9cgm-gf5x-jx5x"],"status":"published","title":"w3c Unicorn ValidatorNuMessage.java ValidatorNuMessage cross site scripting","description":"A vulnerability, which was classified as problematic, has been found in w3c Unicorn. This issue affects the function ValidatorNuMessage of the file src/org/w3c/unicorn/response/impl/ValidatorNuMessage.java. The manipulation of the argument message leads to cross site scripting. The attack may be initiated remotely. The name of the patch is 51f75c31f7fc33859a9a571311c67ae4e95d9c68. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-217019.","severity":{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.0056,"percentile":0.4695,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2022-12-29T08:52:08Z","modified":"2026-10-20T10:55:01Z","products":[{"vendor":"w3","product":"unicorn"},{"vendor":"w3c","product":"unicorn"}],"references":[{"url":"https://vuldb.com/?id.217019","tags":["vdb-entry","technical-description","x_transferred","Third Party Advisory","advisory"]},{"url":"https://vuldb.com/?ctiid.217019","tags":["signature","permissions-required","x_transferred","Third Party Advisory","advisory"]},{"url":"https://github.com/w3c/Unicorn/pull/212","tags":["issue-tracking","x_transferred","Third Party Advisory","advisory"]},{"url":"https://github.com/w3c/Unicorn/commit/51f75c31f7fc33859a9a571311c67ae4e95d9c68","tags":["patch","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-4296"},{"url":"https://github.com/advisories/GHSA-9cgm-gf5x-jx5x"}],"sources":{"cve":[{"id":"CVE-2021-4296","title":"w3c Unicorn ValidatorNuMessage.java ValidatorNuMessage cross site scripting","description":"A vulnerability, which was classified as problematic, has been found in w3c Unicorn. This issue affects the function ValidatorNuMessage of the file src/org/w3c/unicorn/response/impl/ValidatorNuMessage.java. The manipulation of the argument message leads to cross site scripting. The attack may be initiated remotely. The name of the patch is 51f75c31f7fc33859a9a571311c67ae4e95d9c68. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-217019.","status":"published","published":"2022-12-29T08:52:08.121Z","modified":"2024-08-03T17:23:10.275Z","cvss":[{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N","level":"low","assessor":"cna"},{"version":"3.0","score":3.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N","level":"low","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:33:07.697752Z"}],"euvd":[{"id":"EUVD-2021-34132","description":"A vulnerability, which was classified as problematic, has been found in w3c Unicorn. This issue affects the function ValidatorNuMessage of the file src/org/w3c/unicorn/response/impl/ValidatorNuMessage.java. The manipulation of the argument message leads to cross site scripting. The attack may be initiated remotely. The name of the patch is 51f75c31f7fc33859a9a571311c67ae4e95d9c68. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-217019.","status":"published","published":"2022-12-29T08:52:08Z","modified":"2024-08-03T17:23:10Z","cvss":[{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N","level":"low"}],"updated_at":"2026-11-03T03:25:10.418596Z"}],"ghsa":[{"id":"GHSA-9cgm-gf5x-jx5x","title":"A vulnerability, which was classified as problematic, has been found in w3c Unicorn. This issue...","description":"A vulnerability, which was classified as problematic, has been found in w3c Unicorn. This issue affects the function ValidatorNuMessage of the file src/org/w3c/unicorn/response/impl/ValidatorNuMessage.java. The manipulation of the argument message leads to cross site scripting. The attack may be initiated remotely. The name of the patch is 51f75c31f7fc33859a9a571311c67ae4e95d9c68. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-217019.","status":"published","published":"2022-12-29T09:30:19Z","modified":"2023-01-30T05:01:19Z","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":"2026-11-02T14:46:22.963176Z"}],"nvd":[{"id":"CVE-2021-4296","description":"A vulnerability, which was classified as problematic, has been found in w3c Unicorn. This issue affects the function ValidatorNuMessage of the file src/org/w3c/unicorn/response/impl/ValidatorNuMessage.java. The manipulation of the argument message leads to cross site scripting. The attack may be initiated remotely. The name of the patch is 51f75c31f7fc33859a9a571311c67ae4e95d9c68. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-217019.","status":"published","published":"2022-12-29T09:15:08.313Z","modified":"2026-06-17T04:19:26.857Z","cvss":[{"version":"3.1","score":3.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N","level":"low","assessor":"secondary"},{"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"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:07:07.323379Z"}],"osv":[{"id":"CVE-2021-4296","description":"A vulnerability, which was classified as problematic, has been found in w3c Unicorn. This issue affects the function ValidatorNuMessage of the file src/org/w3c/unicorn/response/impl/ValidatorNuMessage.java. The manipulation of the argument message leads to cross site scripting. The attack may be initiated remotely. The name of the patch is 51f75c31f7fc33859a9a571311c67ae4e95d9c68. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-217019.","status":"published","published":"2022-12-29T09:15:08.313Z","modified":"2026-10-20T10:55:01.867656658Z","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":"2026-11-02T15:44:21.557945Z"}]}}