CVE-2025-66484 Multiple vulnerabilities have been addressed in IBM Aspera Shares

Medium 5.5 Published 1 Apr 2026 Updated 2 Apr 2026

Attackers can inject malicious scripts into the web interface, potentially stealing user credentials and compromising sessions.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-66484?

CVE-2025-66484 is a medium-severity cross-site scripting vulnerability in IBM Aspera Shares, published on 1 Apr 2026. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

IBM Aspera Shares 1.9.9 through 1.11.0 is vulnerable to stored cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session.

Weakness: CWE-79

Which versions are affected by CVE-2025-66484?

It affects 1 product.

Products include Ibm Aspera Shares.

How do I fix CVE-2025-66484?

No fix has been published for CVE-2025-66484 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2025-66484 being exploited?

There is no known exploitation of CVE-2025-66484 in the wild and no public exploit code.

Sources

Also known as GHSA-3927-xmmf-mw2x.