CVE-2025-66371

Severity: medium (CVSS 5.0 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-11-28 · updated 2026-10-08
Weakness: CWE-611

Description

Peppol-py before 1.1.1 allows XXE attacks because of the Saxon configuration. When validating XML-based invoices, the XML parser could read files from the filesystem and expose their content to a remote host.

Affected products

Iteras Peppol-py: before 1.1.1 — fixed in 1.1.1

How to fix

Upgrade to a fixed version: Iteras Peppol-py 1.1.1. Check the vendor advisory for mitigations.

References

https://github.com/iterasdev/peppol-py/commit/349a4bff8adb6205ea411bac8d7a06da0477abd7
https://github.com/iterasdev/peppol-py/pull/16
https://github.com/iterasdev/peppol-py/releases/tag/1.1.1
https://invoice.secvuln.info

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