{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "fixed": "34"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "922d04a271005370dbac5974b8b241470725bbc0"
            }
          ],
          "repo": "https://github.com/miraheze/tsportal",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-f346-8rp3-4h9h"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-400",
      "CWE-770"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33541.json"
  },
  "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.",
  "id": "CVE-2026-33541",
  "modified": "2026-04-01T23:10:23.423316035Z",
  "published": "2026-03-26T20:27:05.840Z",
  "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"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "TSPortal's Uncontrolled User Creation via Validation Side Effects Leads to Potential Denial of Service"
}