Login Bypass Vulnerability in Emby Server by MediaBrowser
CVE-2021-25827

9.8CRITICAL

Key Information:

Vendor

Emby

Status
Emby
Vendor
CVE Published:
28 June 2023

What is CVE-2021-25827?

Emby Server versions prior to 4.7.12.0 are susceptible to a login bypass vulnerability. Attackers can exploit this flaw by manipulating the X-Forwarded-For header to impersonate a local IP address, potentially gaining unauthorized access to the system. This allows them to bypass the standard authentication mechanism and pose as legitimate users, raising significant security concerns for Emby Server instances.

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References

https://emby.media/community/index.php?/topic/98191-emby-...
https://github.com/MediaBrowser/Emby/issues/3784
https://github.com/EmbySupport/security/security/advisori...

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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