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Unauthenticated email disclosure in Tournamatch team invitations

Priority LOW 29CWE-200Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-200.

Summary

The Tournamatch WordPress plugin before 4.7.1 does not restrict access to its team invitation listing. This flaw (CWE-200) lets an unauthenticated remote attacker retrieve the email addresses of people invited to join teams. A public exploit is linked in the references.

Written with Claude Haiku 5.5 from the sources below · 2026-11-07

Description from the CNA

The Tournamatch WordPress plugin before 4.7.1 does not restrict access to its team invitation listing, allowing unauthenticated users to retrieve the email addresses of people invited to join teams.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00157 4th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Tournamatch (Unknown): 4.7.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
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
UnknownTournamatchbefore 4.7.14.7.1Patch availableCNA
  • Tournamatch VendorUnknown Affected before 4.7.1 Fixed in 4.7.1 Patch available CNA

Remediation

Update Tournamatch to version 4.7.1, which fixes the flaw. Versions before 4.7.1 are affected.

Written with Claude Haiku 5.5 from the sources below · 2026-11-07

  • Fix · CNA Tournamatch (Unknown) Fixed in 4.7.1

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Tournamatch 4.7.1

    2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2026-86423 Arbitrary file deletion in Tournamatch WordPress pluginPriority MEDIUM 40

Timeline

  1. 2026-11-07 Threatist record created from CVE-2026-121380
  2. 2026-11-07 Alias added: GHSA-2hw7-c3hq-6x3w
  3. 2026-11-07 CVSS score added · CISA ADP
  4. 2026-11-07 Weakness changed · CISA ADP
  5. 2026-11-07 CISA SSVC decision points changed

References

Sources