CVE-2021-20440

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-03-15 · updated 2026-06-17

Description

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.

Affected products

IBM API Connect: from 2018.4.1.0 through 2018.4.1.13; 10.0.0.0

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/196536
https://www.ibm.com/support/pages/node/6430107
https://exchange.xforce.ibmcloud.com/vulnerabilities/196536
https://www.ibm.com/support/pages/node/6430107

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