CVE-2020-4706

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-08-17 · updated 2026-06-17
Weakness: CWE-79

Description

IBM API Connect 5.0.0.0 through 5.0.8.10 is vulnerable to HTTP header injection, caused by improper validation of input by the HOST headers. By sending a specially crafted HTTP request, a remote attacker could exploit this vulnerability to inject HTTP HOST header, which will allow the attacker to conduct various attacks against the vulnerable system, including cross-site scripting, cache poisoning or session hijacking. IBM X-Force ID: 187194.

Affected products

IBM API Connect: from 5.0.0.0 through 5.0.8.10

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/187194
https://www.ibm.com/support/pages/node/6481879
https://exchange.xforce.ibmcloud.com/vulnerabilities/187194
https://www.ibm.com/support/pages/node/6481879

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