What is CVE-2025-36397?

CVE-2025-36397 is a medium-severity vulnerability in Ibm Application Gateway, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 5.4/10. Published 2026-01-20.

How severe is CVE-2025-36397?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Ibm Application Gateway

CVE-2025-36397

IBM Application Gateway 23.10 through 25.09 is vulnerable to HTML injection. A remote attacker could inject malicious HTML code, which when viewed, would be executed in the victim's Web browser within the security context of the hosting si…

EPSS: 0.001 (18.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Ibm Application Gateway — versions 23.10

Weakness classification (CWE)

CWE-80 — Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)

References

www.ibm.com/support/pages/node/7256857 (vendor-advisory, patch)

Frequently asked questions

What is CVE-2025-36397?: CVE-2025-36397 is a medium-severity vulnerability in Ibm Application Gateway, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 5.4/10. Published 2026-01-20.
How severe is CVE-2025-36397?: Medium severity. CVSS v3 base score is 5.4 out of 10.