CVE-2021-29448

Stored DOM XSS in Pi-hole Admin Web Interface

HIGH
8.8
CVSS Score
Published: April 15, 2021 at 03:25 PM UTC
Updated: June 17, 2026 at 03:47 AM UTC
4 products affected across 1 vendorPi HoleWeb InterfaceFtldns

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Severity
HIGH8.8
Exploit prediction
EPSS 0.7%

Description

Pi-hole is a Linux network-level advertisement and Internet tracker blocking application. The Stored XSS exists in the Pi-hole Admin portal, which can be exploited by the malicious actor with the network access to DNS server. See the referenced GitHub security advisory for patch details.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 5.5
Affected range stops below 5.5, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-79

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