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TI-2021-08894 Aliases CVE-2021-27401GHSA-2r9r-8hr4-8x64

The Join Meeting page of Mitel MiCollab Web Client before 9.2 FP2 could allow an attacker…

Priority LOW 28CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

The Join Meeting page of Mitel MiCollab Web Client before 9.2 FP2 could allow an attacker to access (view and modify) user data by executing arbitrary code due to insufficient input validation, aka Cross-Site Scripting (XSS).

Why it matters now

EPSS 0.00586 48th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:mitel:micollab:*:*:*:*:*:-:*:*before 9.2VulnerableMitel
cpe:2.3:a:mitel:micollab:9.2:-:*:*:*:-:*:*9.2VulnerableMitel
cpe:2.3:a:mitel:micollab:9.2:fp1:*:*:*:-:*:*9.2 fp1VulnerableMitel
  • cpe:2.3:a:mitel:micollab:*:*:*:*:*:-:*:* Versions before 9.2 Vulnerable ·Mitel
  • cpe:2.3:a:mitel:micollab:9.2:-:*:*:*:-:*:* Versions 9.2 Vulnerable ·Mitel
  • cpe:2.3:a:mitel:micollab:9.2:fp1:*:*:*:-:*:* Versions 9.2 fp1 Vulnerable ·Mitel

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-27401
  2. 2026-10-03 Alias added: GHSA-2r9r-8hr4-8x64

References

Advisory 2

  • TI-2022-09601 The TP-240 (aka tp240dvr) component in Mitel MiCollab before 9.4 SP1 FP1 and MiVoice… KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-27773 A vulnerability in the NuPoint Unified Messaging (NPM) component of Mitel MiCollab… KEVCVSS 3.1CRITICAL 9.1
  • TI-2014-00154 The (1) TLS and (2) DTLS implementations in OpenSSL 1.0.1 before 1.0.1g do not properly… KEVCVSS 3.1HIGH 7.5
  • TI-2024-23347 A vulnerability in NuPoint Messenger (NPM) of Mitel MiCollab through 9.8.0.33 allows an… CVSS 3.1CRITICAL 9.8
  • TI-2024-36877 Mitel MiCollab through 9.8 SP2 could allow an authenticated attacker with administrative… KEVCVSS 3.1MEDIUM 4.4
  • TI-2018-02664 Observable discrepancy in Intel Multiple CVSS 3.1MEDIUM 5.5
See all 47 →

Sources

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