{"id":"GHSA-gfhq-7499-f3f2","summary":"TSPortal: Any user can forge self-deletion requests for any account","details":"### Summary\nConversion of empty strings to null allows disguising DPA reports as genuine self-deletion reports.\n\n### Details\nCreating a DPA report about another user and leaving the evidence field empty causes that report to look like the reported user self-requested deletion of their data. Ingenuine report is not distinguishable from a genuine one.\n\nThis can be prevented by disabling [convertEmptyStringsToNull](https://api.laravel.com/docs/12.x/Illuminate/Foundation/Configuration/Middleware.html#method_convertEmptyStringsToNull) in the middleware, or by validating `evidence` in Http/Controllers/DPAController::store() to not be empty.\n\n### PoC\nNew DPA report -\u003e Select \"...someone who I suspect is under the age of 13\" for the \"The above username is...\" field -\u003e Add nothing to the \"Evidence\" field -\u003e Submit\n\n### Impact\nPotential unauthorized deletion of any arbitrary user's data both in the current system (TSPortal) and subsequent systems if actioned.","aliases":["CVE-2026-29788"],"modified":"2026-04-09T05:21:46.944471Z","published":"2026-03-27T15:37:10Z","database_specific":{"cwe_ids":["CWE-1287","CWE-283"],"severity":"HIGH","github_reviewed":true,"github_reviewed_at":"2026-03-27T15:37:10Z","nvd_published_at":"2026-03-06T21:16:15Z"},"references":[{"type":"WEB","url":"https://github.com/miraheze/TSPortal/security/advisories/GHSA-gfhq-7499-f3f2"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-29788"},{"type":"WEB","url":"https://api.laravel.com/docs/12.x/Illuminate/Foundation/Configuration/Middleware.html#method_convertEmptyStringsToNull"},{"type":"PACKAGE","url":"https://github.com/miraheze/TSPortal"},{"type":"WEB","url":"https://issue-tracker.miraheze.org/T15053"}],"affected":[{"package":{"name":"miraheze/ts-portal","ecosystem":"Packagist","purl":"pkg:composer/miraheze/ts-portal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"30"}]}],"versions":["v1","v10","v11","v12","v13","v14","v15","v16","v17","v18","v19","v2","v20","v21","v22","v23","v24","v25","v26","v27","v28","v29","v3","v4","v5","v6","v7","v8","v9"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-gfhq-7499-f3f2/GHSA-gfhq-7499-f3f2.json","last_known_affected_version_range":"\u003c= 29"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:L/SA:H"}]}