CVE-2025-66485 Multiple vulnerabilities have been addressed in IBM Aspera Shares
Attackers can inject HTTP headers to perform cross-site scripting, cache poisoning, or session hijacking on IBM Aspera Shares.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-66485?
CVE-2025-66485 is a medium-severity cross-site scripting vulnerability in IBM Aspera Shares, published on 1 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
IBM Aspera Shares 1.9.9 through 1.11.0 is vulnerable to HTTP header injection, caused by improper validation of input by the HOST headers. This could allow an attacker to conduct various attacks against the vulnerable system, including cross-site scripting, cache poisoning or session hijacking.
Weakness: CWE-644
Which versions are affected by CVE-2025-66485?
It affects 1 product.
Products include Ibm Aspera Shares.
How do I fix CVE-2025-66485?
No fix has been published for CVE-2025-66485 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-2025-66485 being exploited?
There is no known exploitation of CVE-2025-66485 in the wild and no public exploit code.
Other vulnerabilities in IBM Aspera Shares
Sources
Also known as GHSA-p56q-w8c2-56v9.