CVE-2026-89005
The WPeMatico RSS Feed Fetcher WordPress plugin before 2.8.26 does not sanitise and escape one of its campaign configuration fields when a certain feature is enabled, which allows users with the Contributor role and above to perform Stored Cross-Site Scripting attacks that execute in the session of any higher-privileged user who later views the campaign.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
- Puntuación base: 6.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.24%
- Percentil entre todas las CVEs puntuadas: 13
- Fecha de la puntuación: 3/10/2026
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 access85 % - Impacto principal
T1059.007JavaScriptexecution75 % - Impacto secundario
T1078.001Default Accountsstealth · persistence · privilege escalation · initial access65 %
XSS almacenado (CWE-79) en plugin WordPress sin sanitización permite inyectar código JavaScript que se ejecuta en sesiones de usuarios privilegiados, facilitando secuestro de cuentas administrativas.
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
Referencias
JSON original (NVD)
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{
"id": "CVE-2026-89005",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-89005",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"version": "2.0.3",
"timestamp": "2026-09-24T10:33:48.662810Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 6.8,
"attackVector": "NETWORK",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "REQUIRED",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "HIGH",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 0.9
}
]
},
"affected": [
{
"source": "contact@wpscan.com",
"affectedData": [
{
"vendor": "Unknown",
"product": "WPeMatico RSS Feed Fetcher",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "2.8.26",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
}
]
}
],
"published": "2026-09-24T06:17:03.843",
"references": [
{
"url": "https://wpscan.com/vulnerability/1c6f4da0-d7e8-4f50-851f-f794552db985/",
"source": "contact@wpscan.com"
}
],
"vulnStatus": "Deferred",
"weaknesses": [
{
"type": "Secondary",
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"description": [
{
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"value": "CWE-79"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "The WPeMatico RSS Feed Fetcher WordPress plugin before 2.8.26 does not sanitise and escape one of its campaign configuration fields when a certain feature is enabled, which allows users with the Contributor role and above to perform Stored Cross-Site Scripting attacks that execute in the session of any higher-privileged user who later views the campaign."
}
],
"lastModified": "2026-09-24T14:42:02.707",
"sourceIdentifier": "contact@wpscan.com"
}