{"id":"CVE-2023-30857","aliases":["EUVD-2023-1644","GHSA-wwxh-74fx-33c6"],"status":"published","title":"@aedart/support possibly vulnerable to prototype pollution in metadata record, when using meta decorator","description":"@aedart/support is the support package for Ion, a monorepo for JavaScript/TypeScript packages. Prior to version `0.6.1`, there is a possible prototype pollution issue for the `MetadataRecord`, when merged with a base class' metadata object, in `meta` decorator from the `@aedart/support` package. The likelihood of exploitation is questionable, given that a class's metadata can only be set or altered when the class is decorated via `meta()`. Furthermore, object(s) of sensitive nature would have to be stored as metadata, before this can lead to a security impact. The issue has been patched in version `0.6.1`.","severity":{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00482,"percentile":0.41882,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-1321"],"published":"2023-04-28T20:37:41Z","modified":"2026-10-28T02:30:47Z","fixes":[{"ecosystem":"npm","package":"@aedart/support","fixed_in":["0.6.1"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"@aedart/support","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.6.1"}]}]},{"source":"osv","ecosystem":"npm","package":"@aedart/support","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.6.1"}]}]}],"products":[{"vendor":"aedart","product":"ion"}],"references":[{"url":"https://github.com/aedart/ion/security/advisories/GHSA-wwxh-74fx-33c6","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory","web"]},{"url":"https://github.com/aedart/ion/commit/c3e2ee08710d4164d796ecb66ed291335dae9291","tags":["x_refsource_MISC","x_transferred","Patch","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-30857","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-wwxh-74fx-33c6"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/30xxx/CVE-2023-30857.json","tags":["advisory"]},{"url":"https://github.com/aedart/ion","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2023-30857","title":"@aedart/support possibly vulnerable to prototype pollution in metadata record, when using meta decorator","description":"@aedart/support is the support package for Ion, a monorepo for JavaScript/TypeScript packages. Prior to version `0.6.1`, there is a possible prototype pollution issue for the `MetadataRecord`, when merged with a base class' metadata object, in `meta` decorator from the `@aedart/support` package. The likelihood of exploitation is questionable, given that a class's metadata can only be set or altered when the class is decorated via `meta()`. Furthermore, object(s) of sensitive nature would have to be stored as metadata, before this can lead to a security impact. The issue has been patched in version `0.6.1`.\n","status":"published","published":"2023-04-28T20:37:41.391Z","modified":"2025-01-30T19:50:17.148Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"low","assessor":"cna"}],"cwes":["CWE-1321"],"updated_at":"2026-11-02T14:35:22.640346Z"}],"euvd":[{"id":"EUVD-2023-1644","description":"@aedart/support is the support package for Ion, a monorepo for JavaScript/TypeScript packages. Prior to version `0.6.1`, there is a possible prototype pollution issue for the `MetadataRecord`, when merged with a base class' metadata object, in `meta` decorator from the `@aedart/support` package. The likelihood of exploitation is questionable, given that a class's metadata can only be set or altered when the class is decorated via `meta()`. Furthermore, object(s) of sensitive nature would have to be stored as metadata, before this can lead to a security impact. The issue has been patched in version `0.6.1`.\n","status":"published","published":"2023-04-28T20:37:41Z","modified":"2025-01-30T19:50:17Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"low"}],"updated_at":"2026-11-03T00:04:08.578338Z"}],"ghsa":[{"id":"GHSA-wwxh-74fx-33c6","title":"Possible prototype pollution in metadata record, when using meta decorator","description":"### Impact\n\nPossible prototype pollution for the `MetadataRecord`, when merged with a base class' metadata object, in `meta` decorator from the `@aedart/support` package.\n\nThe likelihood is questionable, given that a class' metadata can only be set or altered when the class is decorated via `meta()`. Furthermore, object(s) of sensitive nature would have to be stored as metadata, before this can become a vulnerability.\n### Patches\n\nHas been patched in version `0.6.1`.\n","status":"published","published":"2023-05-01T14:01:02Z","modified":"2023-11-07T05:06:37Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"low"}],"cwes":["CWE-1321"],"updated_at":"2026-11-02T14:37:15.931647Z"}],"nvd":[{"id":"CVE-2023-30857","description":"@aedart/support is the support package for Ion, a monorepo for JavaScript/TypeScript packages. Prior to version `0.6.1`, there is a possible prototype pollution issue for the `MetadataRecord`, when merged with a base class' metadata object, in `meta` decorator from the `@aedart/support` package. The likelihood of exploitation is questionable, given that a class's metadata can only be set or altered when the class is decorated via `meta()`. Furthermore, object(s) of sensitive nature would have to be stored as metadata, before this can lead to a security impact. The issue has been patched in version `0.6.1`.\n","status":"published","published":"2023-04-28T21:15:09.127Z","modified":"2026-06-17T05:55:47.243Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"low","assessor":"secondary"},{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-1321"],"updated_at":"2026-11-02T14:07:59.151142Z"}],"osv":[{"id":"CVE-2023-30857","title":"@aedart/support possibly vulnerable to prototype pollution in metadata record, when using meta decorator","description":"@aedart/support is the support package for Ion, a monorepo for JavaScript/TypeScript packages. Prior to version `0.6.1`, there is a possible prototype pollution issue for the `MetadataRecord`, when merged with a base class' metadata object, in `meta` decorator from the `@aedart/support` package. The likelihood of exploitation is questionable, given that a class's metadata can only be set or altered when the class is decorated via `meta()`. Furthermore, object(s) of sensitive nature would have to be stored as metadata, before this can lead to a security impact. The issue has been patched in version `0.6.1`.\n","status":"published","published":"2023-04-28T20:37:41.391Z","modified":"2026-10-28T02:30:47.814728804Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"low"}],"cwes":["CWE-1321"],"updated_at":"2026-11-02T15:44:31.790231Z"},{"id":"GHSA-wwxh-74fx-33c6","title":"Possible prototype pollution in metadata record, when using meta decorator","description":"### Impact\n\nPossible prototype pollution for the `MetadataRecord`, when merged with a base class' metadata object, in `meta` decorator from the `@aedart/support` package.\n\nThe likelihood is questionable, given that a class' metadata can only be set or altered when the class is decorated via `meta()`. Furthermore, object(s) of sensitive nature would have to be stored as metadata, before this can become a vulnerability.\n### Patches\n\nHas been patched in version `0.6.1`.\n","status":"published","published":"2023-05-01T14:01:02Z","modified":"2026-09-10T03:50:01.748488662Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"low"}],"cwes":["CWE-1321"],"updated_at":"2026-11-02T15:46:59.131095Z"}]}}