What is CVE-2025-33138?

CVE-2025-33138 is a medium-severity vulnerability in IBM Aspera Faspex, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 5.4/10. Published 2025-05-22.

How severe is CVE-2025-33138?

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

XSS in IBM Aspera Faspex

CVE-2025-33138

IBM Aspera Faspex 5.0.0 through 5.0.12 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 site.

Published 2025-05-22 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.003 (16.4th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 16.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000

Affected products

Weakness classification (CWE)

References

www.ibm.com/support/pages/node/7234114 (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2025-33138?: CVE-2025-33138 is a medium-severity vulnerability in IBM Aspera Faspex, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 5.4/10. Published 2025-05-22.
How severe is CVE-2025-33138?: Medium severity. CVSS v3 base score is 5.4 out of 10.