What’s Vulnerable › Vulnerabilities

CVE-2021-25828

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-06-28 · updated 2026-10-24
• Weakness: CWE-79

Description

Emby Server versions < 4.6.0.50 is vulnerable to Cross Site Scripting (XSS) vulnerability via a crafted GET request to /web.

Affected products

• EmbySupport Emby.Security: before 4.6.0.50 — fixed in 4.6.0.50

How to fix

Upgrade to a fixed version: EmbySupport Emby.Security 4.6.0.50. Check the vendor advisory for mitigations.

References

• https://github.com/MediaBrowser/Emby/issues/3785
• https://github.com/MediaBrowser/Emby/issues/3785

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