What is CVE-2022-2131?

CVE-2022-2131 is a high-severity vulnerability in Openkm, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 8.5/10. Published 2022-07-25.

How severe is CVE-2022-2131?

High severity. CVSS v3 base score is 8.5 out of 10.

XXE in Openkm

CVE-2022-2131

OpenKM Community Edition in its 6.3.10 version and before was using XMLReader parser in XMLTextExtractor.java file without the required security flags, allowing an attacker to perform a XML external entity injection attack.

Vulnerability class: XXE (XML External Entity)

Published 2022-07-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:L.

EPSS exploit prediction

EPSS: 0.009 (57.1th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 57.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.009 · change: +0.000

Affected products

Openkm
Openkm Document Management Community — versions 6.3.10

Weakness classification (CWE)

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

References

www.incibe-cert.es/en/early-warning/security-advisories/openkm-xxe-injection (Third Party Advisory)

Frequently asked questions

What is CVE-2022-2131?: CVE-2022-2131 is a high-severity vulnerability in Openkm, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 8.5/10. Published 2022-07-25.
How severe is CVE-2022-2131?: High severity. CVSS v3 base score is 8.5 out of 10.