CVE-2020-4706

5.4 mediumEPSS 0.9%

Medium (5.4) in ibm api connect. EPSS 0.9% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

5.4 medium

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

EPSS: 0.9% chance of exploitation in the next 30 days; higher than 60% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2021-08-17
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

ibm:api_connect

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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