Cross-site scripting in IBM API Connect
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-4706
- 2026-10-03 Alias added: GHSA-hvpr-gj5q-6q5q
References
More IBM Api Connect vulnerabilities
- TI-2025-12717 Authentication bypass in IBM API Connect CVSS 3.1CRITICAL 9.8
- TI-2019-03132 OS command injection in IBM API Connect CVSS 3.1CRITICAL 10.0
- TI-2026-07972 IBM API Connect SQL Injection CVSS 3.1CRITICAL 9.8
- TI-2019-03106 IBM API Connect's Developer Portal 2018.1 and 2018.4.1.3 is impacted by a privilege… CVSS 3.0CRITICAL 9.8
- TI-2018-01353 IBM API Connect Developer Portal 5.0.0.0 through 5.0.8.2 could allow an unauthenticated… CVSS 3.0CRITICAL 9.8
- TI-2019-03133 Server-side request forgery in IBM API Connect CVSS 3.1CRITICAL 9.8
Sources
- CVE-2020-4706 · CVE Program
- CVE-2020-4706 · NVD
- FIRST EPSS
- GHSA-hvpr-gj5q-6q5q · GitHub Advisory Database · CC BY 4.0
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