{"id":"CVE-2023-30857","aliases":["GHSA-wwxh-74fx-33c6"],"url":"https://o3.security/vulnerability/CVE-2023-30857","summary":"@aedart/support possibly vulnerable to prototype pollution in metadata record, when using meta decorator","details":"@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","published":"2023-04-28T20:37:41.391Z","modified":"2026-07-15T01:48:51.168708529Z","cvss":{"score":3.7,"severity":"LOW","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"@aedart/support","fixedVersion":"0.6.1"}],"fix":{"url":"https://github.com/aedart/ion/commit/c3e2ee08710d4164d796ecb66ed291335dae9291","label":"aedart/ion@c3e2ee0"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/30xxx/CVE-2023-30857.json"},{"type":"ADVISORY","url":"https://github.com/aedart/ion/security/advisories/GHSA-wwxh-74fx-33c6"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-30857"},{"type":"FIX","url":"https://github.com/aedart/ion/commit/c3e2ee08710d4164d796ecb66ed291335dae9291"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-15T01:48:51.168708529Z"}}