CVE-2026-105630
Plane is an open-source project management tool. Prior to 1.4.0, an authenticated low-privilege workspace member, including a Guest, can upload an image/svg+xml file as a generic or issue attachment. The file retains the attacker-controlled Content-Type, and the asset-download endpoint creates a presigned URL with Content-Disposition: inline. In the default self-hosted MinIO deployment, the asset URL is served from the same origin as the Plane application, allowing embedded SVG JavaScript to execute in the application's security context. A victim, including a workspace administrator, who opens the link can have the session compromised through stored XSS, leading to account takeover. This issue is fixed in 1.4.0.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
- Puntuación base: 8.7
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.21%
- Percentil entre todas las CVEs puntuadas: 11
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
🎯 Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1189Drive-by Compromiseinitial access95 % - Impacto principal
T1059.007JavaScriptexecution90 % - Impacto secundario
T1078Valid Accountsstealth · persistence · privilege escalation · initial access80 % - Impacto secundario
T1505.003Web Shellpersistence85 %
XSS almacenado vía carga de SVG con JavaScript en contexto de origen compartido (CWE-79, Content-Type controlado); ejecución JS en navegador, web shell/sesión comprometida y takeover de cuenta de administrador.
Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.
🛡️ Mitigaciones ATT&CK que cubren estas técnicas
Tecnologías afectadas (1)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
CWE
- CWE-79, CWE-434, CWE-616
Referencias
- https://github.com/makeplane/plane/commit/9dff20e04808286acb372119d88c666b802b1d50
- https://github.com/makeplane/plane/pull/9312
- https://github.com/makeplane/plane/releases/tag/v1.4.0
- https://github.com/makeplane/plane/security/advisories/GHSA-ch8j-vr4r-qf6h
- https://github.com/makeplane/plane/security/advisories/GHSA-ch8j-vr4r-qf6h
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-105630",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-105630",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "poc"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"version": "2.0.3",
"timestamp": "2026-10-05T18:40:36.143539Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "security-advisories@github.com",
"cvssData": {
"scope": "CHANGED",
"version": "3.1",
"baseScore": 8.7,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N",
"integrityImpact": "HIGH",
"userInteraction": "REQUIRED",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "LOW",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.8,
"exploitabilityScore": 2.3
}
]
},
"affected": [
{
"source": "security-advisories@github.com",
"affectedData": [
{
"vendor": "makeplane",
"product": "plane",
"versions": [
{
"status": "affected",
"version": "< 1.4.0"
}
]
}
]
}
],
"published": "2026-10-05T18:17:36.250",
"references": [
{
"url": "https://github.com/makeplane/plane/commit/9dff20e04808286acb372119d88c666b802b1d50",
"source": "security-advisories@github.com"
},
{
"url": "https://github.com/makeplane/plane/pull/9312",
"source": "security-advisories@github.com"
},
{
"url": "https://github.com/makeplane/plane/releases/tag/v1.4.0",
"source": "security-advisories@github.com"
},
{
"url": "https://github.com/makeplane/plane/security/advisories/GHSA-ch8j-vr4r-qf6h",
"source": "security-advisories@github.com"
},
{
"url": "https://github.com/makeplane/plane/security/advisories/GHSA-ch8j-vr4r-qf6h",
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
}
],
"vulnStatus": "Deferred",
"weaknesses": [
{
"type": "Secondary",
"source": "security-advisories@github.com",
"description": [
{
"lang": "en",
"value": "CWE-79"
},
{
"lang": "en",
"value": "CWE-434"
},
{
"lang": "en",
"value": "CWE-616"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Plane is an open-source project management tool. Prior to 1.4.0, an authenticated low-privilege workspace member, including a Guest, can upload an image/svg+xml file as a generic or issue attachment. The file retains the attacker-controlled Content-Type, and the asset-download endpoint creates a presigned URL with Content-Disposition: inline. In the default self-hosted MinIO deployment, the asset URL is served from the same origin as the Plane application, allowing embedded SVG JavaScript to execute in the application's security context. A victim, including a workspace administrator, who opens the link can have the session compromised through stored XSS, leading to account takeover. This issue is fixed in 1.4.0."
}
],
"lastModified": "2026-10-05T19:17:17.093",
"sourceIdentifier": "security-advisories@github.com"
}