{"id":"CVE-2026-33541","aliases":["GHSA-f346-8rp3-4h9h"],"url":"https://o3.security/vulnerability/CVE-2026-33541","summary":"TSPortal's Uncontrolled User Creation via Validation Side Effects Leads to Potential Denial of Service","details":"TSPortal is the WikiTide Foundation’s in-house platform used by the Trust and Safety team to manage reports, investigations, appeals, and transparency work. Prior to version 34, a flaw in TSPortal allowed attackers to create arbitrary user records in the database by abusing validation logic. While validation correctly rejected invalid usernames, a side effect within a validation rule caused user records to be created regardless of whether the request succeeded. This could be exploited to cause uncontrolled database growth, leading to a potential denial of service (DoS). Version 34 contains a fix for the issue.","published":"2026-03-26T20:27:05.840Z","modified":"2026-07-15T01:48:56.763826147Z","cvss":{"score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Packagist","name":"miraheze/ts-portal","fixedVersion":"34"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33541.json"},{"type":"ADVISORY","url":"https://github.com/miraheze/TSPortal/security/advisories/GHSA-f346-8rp3-4h9h"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33541"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-15T01:48:56.763826147Z"}}