CVE-2025-50340

An Insecure Direct Object Reference (IDOR) vulnerability was discovered in SOGo Webmail thru 5.6.0, allowing an authenticated user to send emails on behalf of other users by manipulating a user-controlled identifier in the email-sending request. The server fails to verify whether the authenticated user is authorized to use the specified sender identity, resulting in unauthorized message delivery as another user. This can lead to impersonation, phishing, or unauthorized communication within the system. NOTE: this is disputed by the Supplier because the only effective way to prevent this sender spoofing is on the SMTP server, not within a client such as SOGo.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1110604
https://github.com/millad7/SOGo_web_mail-vulnerability-CVE-2025-50340
https://www.mail-archive.com/users%40sogo.nu/msg34098.html
https://www.sogo.nu/

Configurations

No configuration.

History

No history.

Information

Published : 2025-08-04 20:15

Updated : 2025-08-15 19:15

NVD link : CVE-2025-50340

Mitre link : CVE-2025-50340

CVE.ORG link : CVE-2025-50340

JSON object : View

Products Affected

No product.

CWE

CWE-639

Authorization Bypass Through User-Controlled Key

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