CVE-2026-105131
ezBookkeeping 1.2.0 before 2.0.1 contains a privilege escalation vulnerability that allows attackers holding an API token to obtain a full session token via /api/v1/tokens/refresh.json. Because TokenRefreshHandler never checks token type, attackers can exchange short-lived or IP-restricted API tokens for 30-day normal session tokens that bypass API token expiry and allowlists.
CVSS
- Versión: 4.0
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/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: 5.3
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.20%
- Percentil entre todas las CVEs puntuadas: 9
- 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
T1210Exploitation of Remote Serviceslateral movement85 % - Impacto principal
T1078Valid Accountsstealth · persistence · privilege escalation · initial access90 % - Impacto secundario
T1068Exploitation for Privilege Escalationprivilege escalation75 %
Requiere privilegios previos (PR:L) en red remota para intercambiar tokens API por sesiones de 30 días; escalada de privilegios efectiva (evasión de restricciones de API).
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-863
Referencias
- https://github.com/mayswind/ezbookkeeping
- https://github.com/mayswind/ezbookkeeping/blob/v2.0.0/pkg/api/tokens.go#L327-L380
- https://github.com/mayswind/ezbookkeeping/commit/9a92b07be8a7034665abfdb35b036210a1d57bf9
- https://github.com/mayswind/ezbookkeeping/releases/tag/v2.0.1
- https://github.com/mayswind/ezbookkeeping/security/advisories/GHSA-wq25-mpcf-2mfc
- https://www.vulncheck.com/advisories/mayswind-ezbookkeeping-1.2.0-before-2.0.1-privilege-escalation-via-token-refresh-endpoint
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-105131",
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"timestamp": "2026-10-05T19:18:36.952468Z"
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"modifiedUserInteraction": "NOT_DEFINED",
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"subConfidentialityImpact": "NONE",
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"vulnerabilityResponseEffort": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
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"modifiedVulnConfidentialityImpact": "NOT_DEFINED"
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"affected": [
{
"source": "disclosure@vulncheck.com",
"affectedData": [
{
"vendor": "mayswind",
"product": "ezBookkeeping",
"versions": [
{
"status": "affected",
"version": "1.2.0",
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"versionType": "semver"
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"published": "2026-10-04T02:16:33.600",
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"description": [
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"descriptions": [
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"value": "ezBookkeeping 1.2.0 before 2.0.1 contains a privilege escalation vulnerability that allows attackers holding an API token to obtain a full session token via /api/v1/tokens/refresh.json. Because TokenRefreshHandler never checks token type, attackers can exchange short-lived or IP-restricted API tokens for 30-day normal session tokens that bypass API token expiry and allowlists."
}
],
"lastModified": "2026-10-06T15:25:00.650",
"sourceIdentifier": "disclosure@vulncheck.com"
}