Cyber Resilience

CVE-2021-41175

HighPublic PoC

Published: 26 October 2021

Published
26 October 2021
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1 7.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
EPSS Score 0.0043 62.6th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-41175 is a high-severity Cross-site Scripting (CWE-79) vulnerability in Pi-Hole Web Interface. Its CVSS base score is 7.3 (High).

Operationally, ranked in the top 37.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

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…

more

was patched in version 5.8.

CWE(s)
CWE-79

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

pi-hole
web interface
≤ 5.8

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

CA-8 Penetration Testing
addresses: CWE-79

Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.

SI-10 Information Input Validation
addresses: CWE-79

Validates web inputs to reject script-related content that could produce XSS.

SI-15 Information Output Filtering
addresses: CWE-79

Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.

References