CVE-2025-66486 Multiple vulnerabilities have been addressed in IBM Aspera Shares
Remote attackers can inject malicious HTML into IBM Aspera Shares, leading to script execution in victims' browsers within the site's security context.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-66486?
CVE-2025-66486 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, and only if a user opens a file or follows a link.
Official description
IBM Aspera Shares 1.9.9 through 1.11.0 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.
Weakness: CWE-80
Which versions are affected by CVE-2025-66486?
It affects 1 product.
Products include Ibm Aspera Shares.
How do I fix CVE-2025-66486?
No fix has been published for CVE-2025-66486 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-2025-66486 being exploited?
There is no known exploitation of CVE-2025-66486 in the wild and no public exploit code.
Other vulnerabilities in IBM Aspera Shares
Sources
Also known as GHSA-25px-gj7m-w9m3.