CVE-2026-14851
CriticalCVSS 9.2Exploitation Probability (EPSS)
Low risk25th percentile - higher than 25% of all known CVEs
Summary
A vulnerability in the customer invoicing web application exposes personally identifiable information (PII) and financial data – including customer names, addresses, invoice numbers, payment details and tax information – to unauthorised individuals. The issue is caused by a lack of authorisation checks at the endpoint serving PDF invoice files. Furthermore, some invoicing document URLs appear to be publicly accessible via search engines, exposing paths to confidential files.
Risk Assessment
An attacker could access confidential customer data, including PII and financial information, and predict identifiers to reach even more confidential documents. This poses a confidentiality breach, legal (GDPR) consequences and loss of customer trust.
Recommendation
Immediately implement authorisation checks at the PDF invoice endpoint and prevent public indexing of invoicing document URLs. Also verify whether unauthorised access to data has already occurred.
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Original NVD description (English source)
A vulnerability relating to the exposure of confidential information in the customer invoicing web application, which exposes personally identifiable information (PII) and financial data – including customer names, addresses, invoice numbers, payment details and tax information – to unauthorised individuals. The issue is caused by a lack of authorisation checks at the endpoint responsible for serving PDF invoice files. Furthermore, some URLs for invoicing documents appear to be publicly accessible via search engines, exposing paths to confidential files. Successful exploitation of this vulnerability could allow an attacker to access data to which they should not have access, as well as to predict identifiers in order to access even more confidential information.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

