CVE-2026-33405

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.

CVSS v3 3.1 LOW

3.1^/10

CVSS v3 : LOW

Vector :

Exploitability : 0.6 / Impact : 2.5

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required HIGH

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/pi-hole/web/security/advisories/GHSA-jx8x-mj2r-62vq	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:pi-hole:web_interface:*:*:*:*:*:*:*:*

History

09 Apr 2026, 18:30

Type	Values Removed	Values Added
References	~~() https://github.com/pi-hole/web/security/advisories/GHSA-jx8x-mj2r-62vq -~~	() https://github.com/pi-hole/web/security/advisories/GHSA-jx8x-mj2r-62vq - Third Party Advisory
CPE		cpe:2.3:a:pi-hole:web_interface::::::::
First Time		Pi-hole Pi-hole web Interface

06 Apr 2026, 16:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-06 16:16

Updated : 2026-04-09 18:30

NVD link : CVE-2026-33405

Mitre link : CVE-2026-33405

CVE.ORG link : CVE-2026-33405

JSON object : View

Products Affected

pi-hole

web_interface

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

{"id": "CVE-2026-33405", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 3.1, "attackVector": "LOCAL", "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "HIGH", "confidentialityImpact": "LOW"}, "impactScore": 2.5, "exploitabilityScore": 0.6}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 4.8, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "HIGH", "confidentialityImpact": "LOW"}, "impactScore": 2.7, "exploitabilityScore": 1.7}]}, "published": "2026-04-06T16:16:33.610", "references": [{"url": "https://github.com/pi-hole/web/security/advisories/GHSA-jx8x-mj2r-62vq", "tags": ["Third Party Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-79"}]}], "descriptions": [{"lang": "en", "value": "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."}], "lastModified": "2026-04-09T18:30:03.017", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:pi-hole:web_interface:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3F1EA9FF-4B56-41DE-A685-A1B75E6ECEF2", "versionEndIncluding": "6.4.1", "versionStartIncluding": "6.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}