What is CVE-2021-20440?

CVE-2021-20440 is a medium-severity vulnerability in IBM API Connect. CVSS score: 4.3/10. Published 2021-03-15.

How severe is CVE-2021-20440?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in IBM API Connect

CVE-2021-20440

IBM API Connect 10.0.0.0, and 2018.4.1.0 through 2018.4.1.13 does not restrict member registration to the intended recepient. An attacker who is a valid user in the user registry used by API Manager can use a stolen invitation link and register themselves as a member of an API provider organization. IBM X-Force ID: 196536.

EPSS: 0.007 (49.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

Affected products

Ibm Api Connect — versions 2018.4.1.0, 2018.4.1.13, 10.0.0.0
Ibm Api_connect — versions 10.0.0.0

References

psirt@us.ibm.com (x_refsource_CONFIRM, Vendor Advisory)
psirt@us.ibm.com (VDB Entry, vdb-entry, Vendor Advisory, x_refsource_XF)

Frequently asked questions

What is CVE-2021-20440?: CVE-2021-20440 is a medium-severity vulnerability in IBM API Connect. CVSS score: 4.3/10. Published 2021-03-15.
How severe is CVE-2021-20440?: Medium severity. CVSS v3 base score is 4.3 out of 10.