Improper Neutralization of HTTP Headers for Scripting Syntax in IBM i

1) Improper Neutralization of HTTP Headers for Scripting Syntax

EUVDB-ID: #VU107630

Risk: Low

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-2950

CWE-ID: CWE-644 - Improper Neutralization of HTTP Headers for Scripting Syntax

Exploit availability: No

Description

The vulnerability allows a remote user to perform spoofing attack.

The vulnerability exists due to improper input validation when processing HTTP requests. A remote user can send a specially crafted HTTP request with an arbitrary Host header that will be accepted by the application.

Successful exploitation of the vulnerability may allow an attacker to perform cross-site scripting, cache poisoning or session hijacking attacks.

Mitigation

Install update from vendor's website.

Vulnerable software versions

IBM i: 7.3 - 7.6

CPE2.3

• cpe:2.3:o:ibm_corporation:ibm_i:7.3:*:*:*:*:*:*:*
• cpe:2.3:o:ibm_corporation:ibm_i:7.4:*:*:*:*:*:*:*
• cpe:2.3:o:ibm_corporation:ibm_i:7.5:*:*:*:*:*:*:*

External links

https://www.ibm.com/support/pages/node/7231320

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.