Medium severity · published Aug 13, 2021
CVE-2021-27401
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…
6.1
CVSS
0.6%
EPSS
No
On KEV
Description
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).
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 48% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MI
Micollab · Mitel
before 9.2; 9.2; 9.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-27401
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-27401
Vendor Advisory
https://www.mitel.com/support/security-advisories
Vendor Advisory
https://www.mitel.com/support/security-advisories/mitel-product-security-advisory-21-0004
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