{"affected":[{"defaultStatus":"unaffected","ecosystem":"github","packageName":"invoiceninja/invoiceninja","product":"invoiceninja","source":"CNA: VulnCheck","vendor":"invoiceninja","versions":[{"lessThan":"5.13.28","status":"affected","version":"0","versionType":"semver"}]}],"cveId":"CVE-2026-82029","cwes":["CWE-639","CWE-862"],"description":"Invoice Ninja before 5.13.28 contains a broken access control vulnerability that allows authenticated vendor-portal contacts to access documents belonging to other vendors and clients by exploiting authorization checks that validate only company_id scope instead of vendor ownership. Attackers can request GET /vendor/documents/{hashid}/download or POST /vendor/documents/download_multiple, enumerating predictable sequential Hashids document identifiers due to a default empty HASH_SALT, to read any invoice PDFs, contracts, payment receipts, and expense attachments within the company.","epss":{"date":"2026-11-08","percentile":0.14587,"score":0.00235},"exploits":[],"kev":null,"metrics":[{"score":7.1,"severity":"high","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0"},{"score":6.5,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},{"score":7.1,"severity":"high","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/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":6.5,"severity":"medium","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","version":"3.1"}],"modifiedAt":1794146948007,"publishedAt":1793816287285,"references":[{"source":"CNA: VulnCheck","tags":["release-notes"],"url":"https://github.com/invoiceninja/invoiceninja/releases/tag/v5.13.28"},{"source":"CNA: VulnCheck","tags":["patch"],"url":"https://github.com/invoiceninja/invoiceninja/commit/4895dce820e37b849b34af46548afd8520bb81d1"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/invoice-ninja-broken-access-control-via-vendor-portal"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/invoiceninja/invoiceninja/commit/4895dce820e37b849b34af46548afd8520bb81d1"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/invoiceninja/invoiceninja/releases/tag/v5.13.28"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://www.vulncheck.com/advisories/invoice-ninja-broken-access-control-via-vendor-portal"}],"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/invoiceninja/invoiceninja/commit/4895dce820e37b849b34af46548afd8520bb81d1"}],"revision":"2584a96218a982f16952f244bafdcbecac9c76f84864adaac80ee55dcb112712","sources":[{"modifiedAt":1794146948007,"name":"CNA: VulnCheck","retrievedAt":1794151383180,"url":"https://www.cve.org/CVERecord?id=CVE-2026-82029"},{"modifiedAt":1793906247177,"name":"NVD","retrievedAt":1793946326768,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-82029"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1794151398723,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-82029"}],"ssvc":{"assessedAt":1793905792914,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"Invoice Ninja < 5.13.28 Broken Access Control via Vendor Portal","updatedAt":1794151398723}