What is CVE-2025-3423?

CVE-2025-3423 is a medium-severity vulnerability in IBM Aspera Faspex, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2025-04-13.

How severe is CVE-2025-3423?

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

Is CVE-2025-3423 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in IBM Aspera Faspex

CVE-2025-3423

IBM Aspera Faspex 5.0.0 through 5.0.11 is vulnerable to cross-site scripting. This vulnerability allows an authenticated user to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.003 (17.6th 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

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

psirt@us.ibm.com (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2025-3423?: CVE-2025-3423 is a medium-severity vulnerability in IBM Aspera Faspex, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2025-04-13.
How severe is CVE-2025-3423?: Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2025-3423 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.