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TI-2026-25934 Aliases CVE-2026-33541GHSA-f346-8rp3-4h9h

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

Priority LOW 29CWE-400Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-400.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00304 23rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed TSPortal (miraheze): 34miraheze/ts-portal (Packagist): 34

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
mirahezeTSPortalbefore 3434Patch availableCNA
—miraheze/ts-portal (Packagist)before 3434Patch availableGHSA-f346-8rp3-4h9h
  • TSPortal Vendormiraheze Affected before 34 Fixed in 34 Patch available CNA
  • miraheze/ts-portal (Packagist) Vendor— Affected before 34 Fixed in 34 Patch available GHSA-f346-8rp3-4h9h

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:wikitide:tsportal:*:*:*:*:*:*:*:*before 34VulnerableWikitide
  • cpe:2.3:a:wikitide:tsportal:*:*:*:*:*:*:*:* Versions before 34 Vulnerable ·Wikitide

Remediation

  • Fix · CNA TSPortal (miraheze) Fixed in 34
  • Fix · GHSA-f346-8rp3-4h9h miraheze/ts-portal (Packagist) Fixed in 34 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-33541
  2. 2026-10-03 Alias added: GHSA-f346-8rp3-4h9h

References

Exploit 1

Advisory 1

Other 2

  • TI-2024-16562 Cross-Site Scripting in WikiDiscover CVSS 3.1MEDIUM 6.1
  • TI-2021-10196 wikiconfig API leaked private config variables set through ManageWiki CVSS 3.1CRITICAL 9.4
  • TI-2025-33333 DiscordNotifications allows DOS, SSRF, and possible RCE through requests to user-controlled URLs CVSS 3.1CRITICAL 9.1
  • TI-2025-23966 ManageWiki has SQL injection vulnerability in NamespaceMigrationJob CVSS 3.1HIGH 8.0
  • TI-2026-23374 TSPortal: Anyone can forge self-deletion requests of any user CVSS 4.0HIGH 8.4
  • TI-2024-32057 Cross-site Scripting (XSS) in Special:WikiDiscover when displaying wiki information in WikiDiscover CVSS 3.1HIGH 7.6
See all 22 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences