{"id":"CVE-2026-125749","summary":"TaxHacker through 0.8.5 IDOR via Settings Server Actions userId","details":"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.","modified":"2026-11-14T02:30:37.182703130Z","published":"2026-11-10T15:22:45.938Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/125xxx/CVE-2026-125749.json","cna_assigner":"VulnCheck","cwe_ids":["CWE-639"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/125xxx/CVE-2026-125749.json"},{"type":"ADVISORY","url":"https://hackmd.io/@hieund/taxhacker-settings-crud-actions-cross-user-authz"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-125749"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/taxhacker-through-0.8.5-idor-via-settings-server-actions-userid"},{"type":"REPORT","url":"https://github.com/vas3k/TaxHacker/issues/204"},{"type":"FIX","url":"https://github.com/vas3k/TaxHacker/commit/d84a912f3a06b141cc275bb07115a204e7f10128"},{"type":"PACKAGE","url":"https://github.com/vas3k/TaxHacker"},{"type":"ARTICLE","url":"https://github.com/vas3k/TaxHacker/blob/v0.8.5/app/(app)/settings/actions.ts#L117-L306"},{"type":"EVIDENCE","url":"https://hackmd.io/@hieund/cve-2026-125749-taxhacker-settings-crud-actions-cross-user-authz"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/vas3k/taxhacker","events":[{"introduced":"0"},{"fixed":"d84a912f3a06b141cc275bb07115a204e7f10128"}],"database_specific":{"extracted_events":[{"source":"AFFECTED_FIELD","strategy":"StandardRange","range":[{"introduced":"0"},{"last_affected":"0.8.5"}]},{"range":[{"fixed":"d84a912f3a06b141cc275bb07115a204e7f10128"}],"source":"REFERENCES_COMMIT"}]}}],"versions":["v0.8.5","v0.8.2","v0.8.1","v0.8.0","v0.7.0","v0.6.1","v0.6.0","v0.6","v0.5.5","v0.5.1","v0.5.0","v0.3.0","v0.2.1","v0.2.0","v0.1.5","v0.1.4","v0.1.3","v0.1.2","v0.1.1","v0.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-125749.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N"}]}