CVE-2026-33541 PUBLISHED

TSPortal's Uncontrolled User Creation via Validation Side Effects Leads to Potential Denial of Service

Assigner: GitHub_M
Reserved: 20.03.2026 Published: 26.03.2026 Updated: 26.03.2026

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.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS Score: 6.5

Product Status

Vendor miraheze
Product TSPortal
Versions
  • Version < 34 is affected

References

Problem Types

  • CWE-400: Uncontrolled Resource Consumption CWE
  • CWE-770: Allocation of Resources Without Limits or Throttling CWE