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vuln-cve/data/2026/33xxx/CVE-2026-33406.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-33406",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-03-19T17:02:34.170Z",
"datePublished": "2026-04-06T14:50:35.670Z",
"dateUpdated": "2026-04-07T14:08:17.918Z"
},
"containers": {
"cna": {
"title": "Pi-hole has a Stored HTML attribute injection",
"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": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N",
"version": "3.1"
}
}
],
"references": [
{
"name": "https://github.com/pi-hole/web/security/advisories/GHSA-9rfm-c5g6-538p",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/pi-hole/web/security/advisories/GHSA-9rfm-c5g6-538p"
}
],
"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": "2026-04-06T14:50:35.670Z"
},
"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, configuration values from the /api/config endpoint are placed directly into HTML value=\"\" attributes without escaping in settings-advanced.js, enabling HTML attribute injection. A double quote in any config value breaks out of the attribute context. JavaScript execution is blocked by the server's CSP (script-src 'self'), but injected attributes can alter element styling for UI redressing. The primary attack vector is importing a malicious teleporter backup, which bypasses per-field server-side validation. This vulnerability is fixed in 6.5."
}
],
"source": {
"advisory": "GHSA-9rfm-c5g6-538p",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-04-07T14:06:57.963921Z",
"id": "CVE-2026-33406",
"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": "2026-04-07T14:08:17.918Z"
}
}
]
}
}