{"id":"CVE-2026-125749","published":"2026-11-10T16:17:20.893","lastModified":"2026-11-10T17:17:30.910","description":"TaxHacker through 0.8.5 contains an insecure direct object reference vulnerability in app/(app)/settings/actions.ts that allows authenticated users to modify other users' data by supplying an arbitrary userId. Attackers can invoke Server Actions like deleteCategoryAction or editFieldAction with a victim's UUID to delete categories, clear transaction assignments, or alter LLM prompts.","cvssScore":4.2,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L","cwes":["CWE-639"],"vendors":[],"products":[],"references":[{"url":"https://github.com/vas3k/TaxHacker/blob/v0.8.5/app/(app)/settings/actions.ts#L117-L306","tags":[]},{"url":"https://github.com/vas3k/TaxHacker/commit/d84a912f3a06b141cc275bb07115a204e7f10128","tags":[]},{"url":"https://github.com/vas3k/TaxHacker/issues/204","tags":[]},{"url":"https://hackmd.io/@hieund/taxhacker-settings-crud-actions-cross-user-authz","tags":[]},{"url":"https://www.vulncheck.com/advisories/taxhacker-through-0.8.5-idor-via-settings-server-actions-userid","tags":[]},{"url":"https://hackmd.io/@hieund/cve-2026-125749-taxhacker-settings-crud-actions-cross-user-authz","tags":[]}],"exploitRefs":[{"url":"https://github.com/vas3k/TaxHacker/blob/v0.8.5/app/(app)/settings/actions.ts#L117-L306","tags":[]},{"url":"https://github.com/vas3k/TaxHacker/commit/d84a912f3a06b141cc275bb07115a204e7f10128","tags":[]},{"url":"https://github.com/vas3k/TaxHacker/issues/204","tags":[]}],"hasPoc":true,"ai":null}