CVE-2026-100909
Estado: AplazadaMedia (5.5)—
A vulnerability was found in OctoberCMS up to 4.1.19/4.2.25/4.3.4. The impacted element is the function getSourcePathForResize of the file modules/system/classes/ResizeImages.php. The manipulation of the argument realSourcePath results in server-side request forgery. The attack may be performed from remote. The exploit has been made public and could be used. Upgrading to version 4.3.5 and 4.4.0 is sufficient to resolve this issue. The patch is identified as 0e9736aa2c6d6bd3d60ff6ef9e0b4d32ce387f58. The affected component should be upgraded.
CVSS
- Versión: 4.0
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Puntuación base: 5.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.30%
- Percentil entre todas las CVEs puntuadas: 21
- 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
T1190Exploit Public-Facing Applicationinitial access90 % - Impacto principal
T1090Proxycommand and control85 % - Impacto secundario
T1005Data from Local Systemcollection60 %
CWE-918 (SSRF) en aplicación expuesta accesible remotamente sin autenticación. Vector AV:N/PR:N permite T1190. El atacante manipula realSourcePath para redirigir requests (T1090) y potencialmente acceder a recursos internos (T1005).
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-918
Referencias
- https://github.com/0xGenesi/CVE/blob/main/October_CMS_Stream_Wrapper_Injection.md
- https://github.com/octobercms/october/commit/0e9736aa2c6d6bd3d60ff6ef9e0b4d32ce387f58
- https://github.com/octobercms/october/releases/tag/v4.3.5
- https://github.com/octobercms/october/security/advisories/GHSA-2xmm-m4wv-3fjh
- https://vuldb.com/cve/CVE-2026-100909
- https://vuldb.com/submit/919993
- https://vuldb.com/vuln/410869
- https://vuldb.com/vuln/410869/cti
JSON original (NVD)
Mostrar
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],
"published": "2026-09-28T05:16:30.067",
"references": [
{
"url": "https://github.com/0xGenesi/CVE/blob/main/October_CMS_Stream_Wrapper_Injection.md",
"source": "cna@vuldb.com"
},
{
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{
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"source": "cna@vuldb.com"
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{
"url": "https://vuldb.com/cve/CVE-2026-100909",
"source": "cna@vuldb.com"
},
{
"url": "https://vuldb.com/submit/919993",
"source": "cna@vuldb.com"
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{
"url": "https://vuldb.com/vuln/410869",
"source": "cna@vuldb.com"
},
{
"url": "https://vuldb.com/vuln/410869/cti",
"source": "cna@vuldb.com"
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"vulnStatus": "Deferred",
"weaknesses": [
{
"type": "Secondary",
"source": "cna@vuldb.com",
"description": [
{
"lang": "en",
"value": "CWE-918"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability was found in OctoberCMS up to 4.1.19/4.2.25/4.3.4. The impacted element is the function getSourcePathForResize of the file modules/system/classes/ResizeImages.php. The manipulation of the argument realSourcePath results in server-side request forgery. The attack may be performed from remote. The exploit has been made public and could be used. Upgrading to version 4.3.5 and 4.4.0 is sufficient to resolve this issue. The patch is identified as 0e9736aa2c6d6bd3d60ff6ef9e0b4d32ce387f58. The affected component should be upgraded."
}
],
"lastModified": "2026-09-28T15:16:04.793",
"sourceIdentifier": "cna@vuldb.com"
}