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.

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)

EPSS: 0.012 (65.0th percentile) — read the EPSS interpretation.

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.

Affected products

Salesforce Mule
N/a Mulesoft — versions Mule 4.x runtime released before February 2, 2021

Weakness classification (CWE)

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

References

security@salesforce.com (x_refsource_CONFIRM, Vendor Advisory)

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.