CVE-2026-23610
Stored XSS in GFI MailEssentials POP2Exchange Configuration Endpoint
Publication date: 2026-02-19
Last updated on: 2026-02-20
Assigner: VulnCheck
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| gfi | mailessentials | to 22.4 (exc) |
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 stored cross-site scripting (XSS) issue found in GFI MailEssentials AI versions prior to 22.4. It occurs in the POP2Exchange configuration endpoint, where an authenticated user can input malicious HTML or JavaScript code into the POP3 server login field within a JSON payload. This malicious code is then stored and later executed in the management interface when rendered, allowing script execution in the context of a logged-in user.
How can this vulnerability impact me? :
The impact of this vulnerability is that an attacker with authenticated access can execute arbitrary scripts in the context of a logged-in user. This can lead to unauthorized actions being performed within the management interface, potential theft of sensitive information, session hijacking, or other malicious activities that exploit the user's privileges.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know