{"affected":[{"defaultStatus":"unaffected","ecosystem":"github","packageName":"vas3k/TaxHacker","product":"TaxHacker","source":"CNA: VulnCheck","vendor":"vas3k","versions":[{"lessThanOrEqual":"0.8.5","status":"affected","version":"0","versionType":"custom"}]}],"cveId":"CVE-2026-125749","cwes":["CWE-639"],"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.","epss":null,"exploits":[{"kind":"exploit","source":"ADP: CISA-ADP","url":"https://hackmd.io/@hieund/cve-2026-125749-taxhacker-settings-crud-actions-cross-user-authz"}],"kev":null,"metrics":[{"score":2.3,"severity":"low","source":"CNA: VulnCheck","vector":"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","version":"4.0"},{"score":4.2,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L","version":"3.1"},{"score":2.3,"severity":"low","source":"NVD: disclosure@vulncheck.com","vector":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","version":"4.0"},{"score":4.2,"severity":"medium","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L","version":"3.1"}],"modifiedAt":1794331050910,"publishedAt":1794324165938,"references":[{"source":"CNA: VulnCheck","tags":["issue-tracking"],"url":"https://github.com/vas3k/TaxHacker/issues/204"},{"source":"CNA: VulnCheck","tags":["patch"],"url":"https://github.com/vas3k/TaxHacker/commit/d84a912f3a06b141cc275bb07115a204e7f10128"},{"source":"CNA: VulnCheck","tags":["technical-description"],"url":"https://github.com/vas3k/TaxHacker/blob/v0.8.5/app/(app)/settings/actions.ts#L117-L306"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://hackmd.io/@hieund/taxhacker-settings-crud-actions-cross-user-authz"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/taxhacker-through-0.8.5-idor-via-settings-server-actions-userid"},{"source":"ADP: CISA-ADP","tags":["exploit"],"url":"https://hackmd.io/@hieund/cve-2026-125749-taxhacker-settings-crud-actions-cross-user-authz"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/vas3k/TaxHacker/blob/v0.8.5/app/(app)/settings/actions.ts#L117-L306"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/vas3k/TaxHacker/commit/d84a912f3a06b141cc275bb07115a204e7f10128"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/vas3k/TaxHacker/issues/204"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://hackmd.io/@hieund/taxhacker-settings-crud-actions-cross-user-authz"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://www.vulncheck.com/advisories/taxhacker-through-0.8.5-idor-via-settings-server-actions-userid"},{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":[],"url":"https://hackmd.io/@hieund/cve-2026-125749-taxhacker-settings-crud-actions-cross-user-authz"}],"remediation":[{"kind":"fix","source":"CNA: VulnCheck","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://github.com/vas3k/TaxHacker/commit/d84a912f3a06b141cc275bb07115a204e7f10128"}],"revision":"99f697dda50a00482edf18a954d865a5fc211f703be1d3eb0964c2550fe67b96","sources":[{"modifiedAt":1794328883888,"name":"CNA: VulnCheck","retrievedAt":1794330659621,"url":"https://www.cve.org/CVERecord?id=CVE-2026-125749"},{"modifiedAt":1794331050910,"name":"NVD","retrievedAt":1794336264176,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-125749"}],"ssvc":{"assessedAt":1794328864147,"automatable":"no","exploitation":"poc","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"TaxHacker through 0.8.5 IDOR via Settings Server Actions userId","updatedAt":1794336264176}