Exposure of sensitive information in Viday

published 2025-10-02 last yr. modified 2026-10-19 21d ago also EUVD-2025-32670

cvss: 8.7; version 4.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 27%
public exploits: 0; none known

Exposure of sensitive information in Viday. This vulnerability could allow an unauthenticated attacker to obtain sensitive information about customers by sending an HTTP GET request to “/api/reserva/web/clients” using the “phone” parameter.

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CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: last yr. (2025-10-02)

Exploit prediction

0.34% chance of exploitation in the next 30 days, higher than 27% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	4.0	8.7	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CNA	4.0	8.7	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/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

Affected products

ViDay ViDay

Classification

Weakness

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

incibe.es /en/incibe-cert/notices/aviso/multiple-vulnerabilities-viday

Sources

CVE List CVE-2025-40645
NVD CVE-2025-40645

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