What is CVE-2022-31471?

CVE-2022-31471 is a high-severity vulnerability in Christian Stefanescu Untangle, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 7.5/10. Published 2022-07-26.

How severe is CVE-2022-31471?

High severity. CVSS v3 base score is 7.5 out of 10.

XXE in Christian Stefanescu Untangle

CVE-2022-31471

untangle is a python library to convert XML data to python objects. untangle versions 1.2.0 and earlier improperly restricts XML external entity references. By exploiting this vulnerability, a remote unauthenticated attacker may read the contents of local files.

Vulnerability class: XXE (XML External Entity)

Published 2022-07-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.017 (75.7th percentile), scored 2026-10-04.

Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 75.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.016 · newest: 0.017 · change: +0.000

Affected products

Christian Stefanescu Untangle — versions 1.2.0 and earlier
Untangle Project

Weakness classification (CWE)

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

References

github.com/stchris/untangle (Product, Third Party Advisory)
github.com/stchris/untangle/releases/tag/1.2.1 (Third Party Advisory, Release Notes)
jvn.jp/en/jp/JVN30454777/ (Third Party Advisory)

Frequently asked questions

What is CVE-2022-31471?: CVE-2022-31471 is a high-severity vulnerability in Christian Stefanescu Untangle, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 7.5/10. Published 2022-07-26.
How severe is CVE-2022-31471?: High severity. CVSS v3 base score is 7.5 out of 10.