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TI-2021-07881 Aliases CVE-2021-25828GHSA-9pjf-87x2-r68m

Emby Server versions < 4.6.0.50 is vulnerable to Cross Site Scripting (XSS) vulnerability…

Priority LOW 28CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

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

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0053 45th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:emby:emby:*:*:*:*:*:*:*:*before 4.6.0.50VulnerableEmby
  • cpe:2.3:a:emby:emby:*:*:*:*:*:*:*:* Versions before 4.6.0.50 Vulnerable ·Emby

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-25828
  2. 2026-10-03 Alias added: GHSA-9pjf-87x2-r68m

References

Exploit 1

  • TI-2020-16372 Emby Server before 4.5.0 allows SSRF via the Items/RemoteSearch/Image ImageURL parameter. CVSS 3.1CRITICAL 9.8
  • TI-2021-07880 Emby Server < 4.7.12.0 is vulnerable to a login bypass attack by setting the… CVSS 3.1CRITICAL 9.8
  • TI-2025-39760 Emby Server is Vulnerable to Remote Code Execution Through XSS in Admin Dashboard CVSS 4.0HIGH 8.4
  • TI-2022-16600 In Emby Server 4.6.7.0, the playlist name field is vulnerable to XSS stored where it is… CVSS 3.1MEDIUM 6.1
  • TI-2025-39564 Emby Server allows attackers to gain administrative server access without preconditions CVSS 4.0CRITICAL 9.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences