CVE-2026-107798
jivejdon desde el commit 595d8d22 hasta el commit ee67a65e contiene una vulnerabilidad de secuencias de comandos en sitios cruzados (XSS) almacenada en el filtro TextStyle, activado de forma predeterminada, que inserta URL no validadas en atributos href de anclas. Los atacantes autenticados pueden publicar mensajes con enlaces javascript: o URL que rompen las comillas para ejecutar JavaScript cuando otros usuarios hacen clic o pasan el ratón sobre los enlaces representados.
Traducción automática del texto original de NVD (en inglés).
CVSS
- Versión: 4.0
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/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: 5.1
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: 15/10/2026
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 %
XSS almacenado (CWE-79) en filtro de TextStyle que inyecta URLs sin validar en atributos href, ejecutable al hacer click/hover. Requiere autenticación y UI:R confirma la interacción del usuario.
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
- https://github.com/banq/jivejdon
- https://github.com/banq/jivejdon/blob/ee67a65e65228644a71c8317d7e34deea50f95ef/src/main/java/com/jdon/jivejdon/domain/model/message/output/html/TextStyle.java#L242-L243
- https://github.com/banq/jivejdon/issues/28
- https://www.vulncheck.com/advisories/jivejdon-through-commit-ee67a65e-stored-xss-via-markdown-links-in-textstyle-rendering-filter
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-107798",
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"metrics": {
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"integrityImpact": "LOW",
"userInteraction": "REQUIRED",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
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"confidentialityImpact": "LOW"
},
"impactScore": 2.7,
"exploitabilityScore": 2.3
}
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"cvssMetricV40": [
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"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/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",
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"vulnIntegrityImpact": "LOW",
"integrityRequirement": "NOT_DEFINED",
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"vulnAvailabilityImpact": "NONE",
"availabilityRequirement": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"subConfidentialityImpact": "LOW",
"vulnConfidentialityImpact": "LOW",
"confidentialityRequirement": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"vulnerabilityResponseEffort": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED"
}
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},
"affected": [
{
"source": "disclosure@vulncheck.com",
"affectedData": [
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"repo": "https://github.com/banq/jivejdon",
"vendor": "banq",
"product": "jivejdon",
"versions": [
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"published": "2026-10-08T22:17:29.887",
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{
"url": "https://www.vulncheck.com/advisories/jivejdon-through-commit-ee67a65e-stored-xss-via-markdown-links-in-textstyle-rendering-filter",
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"vulnStatus": "Deferred",
"weaknesses": [
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"description": [
{
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"value": "CWE-79"
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],
"descriptions": [
{
"lang": "en",
"value": "jivejdon from commit 595d8d22 through commit ee67a65e contains a stored cross-site scripting vulnerability in the default-enabled TextStyle filter that inserts unvalidated URLs into anchor href attributes. Authenticated attackers can post messages with javascript: links or quote-breaking URLs to execute JavaScript when other users click or hover over rendered links."
}
],
"lastModified": "2026-10-14T17:18:18.200",
"sourceIdentifier": "disclosure@vulncheck.com"
}