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TI-2021-18014 Aliases CVE-2021-41175

Stored XSS in Client Groups Management (Authenticated)

Priority LOW 34CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

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

Summary

Pi-hole's Web interface (based on AdminLTE) provides a central location to manage one's Pi-hole and review the statistics generated by FTLDNS. Prior to version 5.8, cross-site scripting is possible when adding a client via the groups-clients management page. This issue was patched in version 5.8.

Why it matters now

EPSS 0.009 59th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed AdminLTE (pi-hole): 5.8

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
Pi-holeAdminLTEbefore 5.85.8Patch availableCNA
  • AdminLTE VendorPi-hole Affected before 5.8 Fixed in 5.8 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:pi-hole:web_interface:*:*:*:*:*:*:*:*before 5.8VulnerablePi-hole
  • cpe:2.3:a:pi-hole:web_interface:*:*:*:*:*:*:*:* Versions before 5.8 Vulnerable ·Pi-hole

Remediation

  • Fix · CNA AdminLTE (pi-hole) Fixed in 5.8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-41175

References

Exploit 1

Patch 1

Advisory 1

  • TI-2023-09443 Improper session handling of "Remember me for 7 days" functionality CVSS 3.1HIGH 8.8
  • TI-2025-36756 Pi-hole Admin Interface vulnerable to HTTP response header injection via CRLF injection CVSS 3.1HIGH 8.2
  • TI-2026-25803 Pi-hole has a Stored HTML attribute injection CVSS 3.1MEDIUM 6.1
  • TI-2026-25801 Pi-hole has a Stored XSS / HTML injection in the Network page/Dashboard CVSS 3.1MEDIUM 6.1
  • TI-2026-25800 Pi-hole has a Reflected XSS / HTML injection in taillog.js CVSS 3.1MEDIUM 6.1
  • TI-2025-33477 Pi-hole Admin Interface vulnerable to cross-site scripting via malformed URL path on 404 error page CVSS 4.0MEDIUM 5.1
See all 15 →

Sources

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