CVE-2026-92419: IDOR in WEBCON BPS

Severity: medium (CVSS 5.3 v4.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-23 · updated 2026-09-23
Weakness: CWE-639

Description

WEBCON BPS is vulnerable to Insecure Direct Object Reference (IDOR) in the /api/vacations/{path} endpoint. The selectedPeople parameter in the Gantt vacation chart API does not validate whether the requesting user is authorized to access the requested users' data. An authenticated attacker can supply arbitrary user logins in the selectedPeople parameter to view vacation schedules of other employees, including managers and staff from other offices, regardless of business logic access restrictions, resulting in unauthorized disclosure of sensitive scheduling information.This vulnerability was fixed in versions: 2025.2.1.177 and 2026.1.1.20

Affected products

WEBCON BPS: from 2024.1.1.145 before 2025.2.1.177; from 2026.1.1.1 before 2026.1.1.20 — fixed in 2025.2.1.177, 2026.1.1.20

How to fix

Upgrade to a fixed version: WEBCON BPS 2025.2.1.177, 2026.1.1.20. Check the vendor advisory for mitigations.

References

https://cert.pl/en/posts/2026/09/CVE-2026-92419

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