XXE in Salesforce Mule

CVE-2021-1628

MuleSoft is aware of a XML External Entity (XXE) vulnerability affecting certain versions of a Mule runtime component that may affect both CloudHub and on-premise customers. Affected versions: Mule 4.x runtime released before February 2, 2021.

Vulnerability class: XXE (XML External Entity)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.012 (66.9th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 67th percentile — 66.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2021-1628: held from 0.012 to 0.012.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000

Affected products

  • Salesforce Mule
  • Mulesoft — versions Mule 4.x runtime released before February 2, 2021

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-1628?
CVE-2021-1628 is a critical-severity vulnerability in Salesforce Mule, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 9.8/10. Published 2021-03-26.
How severe is CVE-2021-1628?
Critical severity. CVSS v3 base score is 9.8 out of 10.