{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-33405", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-03-19T17:02:34.170Z", "datePublished": "2026-04-06T15:23:32.750Z", "dateUpdated": "2026-04-06T18:37:49.276Z"}, "containers": {"cna": {"title": "Pi-hole has a Stored HTML Injection in queries.js", "problemTypes": [{"descriptions": [{"cweId": "CWE-79", "lang": "en", "description": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 3.1, "baseSeverity": "LOW", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/pi-hole/web/security/advisories/GHSA-jx8x-mj2r-62vq", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/pi-hole/web/security/advisories/GHSA-jx8x-mj2r-62vq"}], "affected": [{"vendor": "pi-hole", "product": "web", "versions": [{"version": ">= 6.0, < 6.5", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-04-06T15:23:32.750Z"}, "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."}], "source": {"advisory": "GHSA-jx8x-mj2r-62vq", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-04-06T18:37:34.520924Z", "id": "CVE-2026-33405", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-06T18:37:49.276Z"}}]}}

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{"cveTags": [], "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."}], "id": "CVE-2026-33405", "lastModified": "2026-04-06T16:16:33.610", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 3.1, "baseSeverity": "LOW", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 0.6, "impactScore": 2.5, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-04-06T16:16:33.610", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/pi-hole/web/security/advisories/GHSA-jx8x-mj2r-62vq"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[6.0,6.5)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "web", "source": "cna", "vendor": "pi-hole"}, "product": "web", "vendor": "pi-hole"}], "analysis": {"en": {"generated_at": "2026-04-06T18:20:18.785549+00:00", "value": {"mitigation_remediation": ["Upgrade Pi\u2011hole to version 6.5 or later, ensuring the admin interface reflects the patched code.", "After upgrading, verify that expanding a query log entry no longer displays raw HTML by checking for unexpected markup.", "If an immediate upgrade is not possible, restrict access to the Query Log page to administrators only and avoid using the expanded view until a patch is applied."], "summary": {"action": "Patch Update", "impact": "Stored HTML Injection"}, "threat_synthesis": {"affected_systems": "The vulnerability affects Pi\u2011hole web interface versions 6.0 through 6.4 inclusive. Versions 6.5 and later include a fix that properly escapes the rendered fields. The affected vendor and product are listed as pi\u2011hole:web in the CNA data.", "description_and_impact": "Pi\u2011hole Admin Interface contains a stored HTML injection flaw. When a query log entry is expanded, the formatInfo() function inserts the upstream, client IP, and query text directly into the page without escaping, allowing an attacker to embed custom HTML markup. The injected markup cannot execute JavaScript because the server enforces a Content Security Policy that permits only scripts from the same origin, so the attack surface is limited to UI manipulation and potential phishing. This issue is identified as a CWE\u201179 problem.", "risk_and_exploitability": "The CVSS base score of 3.1 indicates low severity. No EPSS score is available and the vulnerability is not listed in the CISA KEV catalog. The description does not state whether authentication is required, so it is unknown if an attacker needs administrative privileges. Since the Query Log is normally accessed by administrators, the flaw could be limited to users with such access. Even with the server-enforced CSP, the vulnerability still permits arbitrary HTML insertion, which can be used for social engineering or UI spoofing, but the overall risk is considered moderate and unlikely to be widely exploited at present."}}}}, "created": "2026-04-06T20:14:05.678482+00:00", "updated": "2026-04-06T21:32:18.062009+00:00", "vendors": ["pi-hole", "pi-hole$PRODUCT$web"]}