{"affected":[{"defaultStatus":"unaffected","ecosystem":"github","packageName":"zhimaAi/chatwiki","product":"chatwiki","source":"CNA: VulnCheck","vendor":"zhimaAi","versions":[{"lessThan":"2.10.0","status":"affected","version":"0","versionType":"semver"}]}],"cveId":"CVE-2026-123782","cwes":["CWE-639"],"description":"ChatWiki before 2.10.0 contains an insecure direct object reference vulnerability in SaveFormField and UpdateFormRequired that allows authenticated users to modify other tenants' form fields. Attackers can pass their own form_id to satisfy the ownership check alongside another tenant's sequential form_field id to alter field names, descriptions, types and required flags, disrupting how submitted entries are stored.","epss":{"date":"2026-11-09","percentile":0.15626,"score":0.00244},"exploits":[],"kev":null,"metrics":[{"score":5.3,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"},{"score":4.3,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","version":"3.1"},{"score":5.3,"severity":"medium","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/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":4.3,"severity":"medium","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","version":"3.1"}],"modifiedAt":1794266236240,"publishedAt":1793977259182,"references":[{"source":"CNA: VulnCheck","tags":["issue-tracking"],"url":"https://github.com/zhimaAi/chatwiki/issues/182"},{"source":"CNA: VulnCheck","tags":["product"],"url":"https://github.com/zhimaAi/chatwiki"},{"source":"CNA: VulnCheck","tags":["patch"],"url":"https://github.com/zhimaAi/chatwiki/commit/81dd7a34be0322dd0881e1b8cfe85de337fdaf2b"},{"source":"CNA: VulnCheck","tags":["patch"],"url":"https://github.com/zhimaAi/chatwiki/commit/d1ca145e283e2cb652e0b1002d5f14d6a46671e3"},{"source":"CNA: VulnCheck","tags":["release-notes"],"url":"https://github.com/zhimaAi/chatwiki/releases/tag/v2.10.0"},{"source":"CNA: VulnCheck","tags":["technical-description"],"url":"https://github.com/zhimaAi/chatwiki/blob/v2.9.6/internal/app/chatwiki/business/manage/form.go#L307-L352"},{"source":"CNA: VulnCheck","tags":["technical-description"],"url":"https://github.com/zhimaAi/chatwiki/blob/v2.9.6/internal/app/chatwiki/business/manage/form.go#L385-L411"},{"source":"CNA: VulnCheck","tags":["technical-description"],"url":"https://hackmd.io/@hieund/chatwiki-form-field-cross-tenant-idor"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/chatwiki-before-2.10.0-cross-tenant-idor-via-saveformfield-and-updateformrequired"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/zhimaAi/chatwiki"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/zhimaAi/chatwiki/blob/v2.9.6/internal/app/chatwiki/business/manage/form.go#L307-L352"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/zhimaAi/chatwiki/blob/v2.9.6/internal/app/chatwiki/business/manage/form.go#L385-L411"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/zhimaAi/chatwiki/commit/81dd7a34be0322dd0881e1b8cfe85de337fdaf2b"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/zhimaAi/chatwiki/commit/d1ca145e283e2cb652e0b1002d5f14d6a46671e3"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/zhimaAi/chatwiki/issues/182"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/zhimaAi/chatwiki/releases/tag/v2.10.0"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://hackmd.io/@hieund/chatwiki-form-field-cross-tenant-idor"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://www.vulncheck.com/advisories/chatwiki-before-2.10.0-cross-tenant-idor-via-saveformfield-and-updateformrequired"}],"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/zhimaAi/chatwiki/commit/81dd7a34be0322dd0881e1b8cfe85de337fdaf2b"},{"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/zhimaAi/chatwiki/commit/d1ca145e283e2cb652e0b1002d5f14d6a46671e3"}],"revision":"8ec0b5ddad785e9e9ce49cf3c46c1982cb3cc124497dd7afc6699abab83a3e63","sources":[{"modifiedAt":1794264334492,"name":"CNA: VulnCheck","retrievedAt":1794265762075,"url":"https://www.cve.org/CVERecord?id=CVE-2026-123782"},{"modifiedAt":1794266236240,"name":"NVD","retrievedAt":1794269916085,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-123782"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1794265766118,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-123782"}],"ssvc":{"assessedAt":1794263679349,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"ChatWiki before 2.10.0 Cross-Tenant IDOR via SaveFormField and UpdateFormRequired","updatedAt":1794269916085}