What is CVE-2021-30137?

CVE-2021-30137 is a high-severity vulnerability in Axiossystems Assyst, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 7.7/10. Published 2021-09-15.

How severe is CVE-2021-30137?

High severity. CVSS v3 base score is 7.7 out of 10.

XXE in Axiossystems Assyst

CVE-2021-30137

Assyst 10 SP7.5 has authenticated XXE leading to SSRF via XML unmarshalling. The application allows users to send JSON or XML data to the server. It was possible to inject malicious XML data through several access points.

Vulnerability class: XXE (XML External Entity)

EPSS: 0.008 (53.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:H.

Affected products

Axiossystems Assyst — versions 10
N/a — versions n/a

Weakness classification (CWE)

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

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-30137?: CVE-2021-30137 is a high-severity vulnerability in Axiossystems Assyst, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 7.7/10. Published 2021-09-15.
How severe is CVE-2021-30137?: High severity. CVSS v3 base score is 7.7 out of 10.