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CVE-2026-33405

Pi-hole has a Stored HTML Injection in queries.js

Published: Apr 6, 2026Updated: Apr 9, 2026 Sources: CVE List NVDCWE-79
3.1LOW
NVD MITRE
EPSS Score
0.2%
Top 93.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

Description

Pi-hole Admin Interface is a web interface for managing Pi-hole, a network-level ad and internet tracker blocking application. From 6.0 to before 6.5, the formatInfo() function in queries.js renders data.upstream, data.client.ip, and data.ede.text into HTML without escaping when a user expands a query row in the Query Log, enabling stored HTML injection. JavaScript execution is blocked by the server's CSP (script-src 'self'). The same fields are properly escaped in the table view (rowCallback), confirming the omission was an oversight. This vulnerability is fixed in 6.5.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:LAC:LPR:HUI:RS:UC:LI:LA:N
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-79

Affected Products

webpi-hole
On-premWeb App
Networking Infrastructure / dns-dhcp-ntp
web interfacepi-hole
On-premWeb App
Networking Infrastructure / network-management
pi-holeoss-projectNetworking Infrastructureaka pi-hole

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://github.com/pi-hole/web/security/advisories/GHSA-jx8x-mj2r-62vq
github.com

Timeline

Published
Apr 6, 2026
Last Updated
Apr 9, 2026

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