CVE-2025-27828
BaseFortify
Publication date: 2025-06-24
Last updated on: 2025-06-26
Assigner: MITRE
Description
Description
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-79 | The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a reflected cross-site scripting (XSS) flaw in the Legacy Chat component of Mitel's MiContact Center Business. It occurs due to insufficient input validation, allowing an unauthenticated attacker to execute arbitrary scripts by tricking a user into interacting with a malicious link or input. This can lead to the attacker obtaining sensitive information and altering the current chat session, affecting confidentiality and integrity, although the overall impact is limited. [1]
How can this vulnerability impact me? :
If exploited, this vulnerability could allow an attacker to execute arbitrary scripts in the context of the affected chat session, potentially leading to disclosure of sensitive information and unauthorized modification of chat content. However, exploitation requires user interaction and the impact on confidentiality is high, while integrity impact is low. Availability is not affected. [1]
What immediate steps should I take to mitigate this vulnerability?
To mitigate the CVE-2025-27828 vulnerability, you should upgrade to MiContact Center Business version 10.2.0.5 or later. If upgrading is not immediately possible, apply the appropriate hotfix for your version: KB571320 for 9.5.0.3, KB571372 for 10.0.0.4, or KB571322 for 10.1.0.5. Additional mitigation steps include disabling the Legacy Chat component or migrating to the CloudLink Contact Center Messenger Chat. Refer to Mitel Knowledge Base article SO8420 for detailed instructions. [1]