What is CVE-2025-66371?

CVE-2025-66371 is a medium-severity vulnerability in Iteras Peppol-Py, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 5.0/10. Published 2025-11-28.

How severe is CVE-2025-66371?

Medium severity. CVSS v3 base score is 5.0 out of 10.

XXE in Iteras Peppol-Py

CVE-2025-66371

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.

Vulnerability class: XXE (XML External Entity)

EPSS: 0.003 (24.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.0 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N.

Affected products

Iteras Peppol-py — versions 0

Weakness classification (CWE)

CWE-611 — Improper Restriction of XML External Entity Reference (XXE)

References

cve@mitre.org
cve@mitre.org
cve@mitre.org
cve@mitre.org

Frequently asked questions

What is CVE-2025-66371?: CVE-2025-66371 is a medium-severity vulnerability in Iteras Peppol-Py, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 5.0/10. Published 2025-11-28.
How severe is CVE-2025-66371?: Medium severity. CVSS v3 base score is 5.0 out of 10.