CVE-2026-44960 Cross-site scripting in Adserver
Stored XSS in Revive Adserver allows attackers to execute malicious JavaScript in admin browsers via unsanitized usernames in audit logs.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-44960?
CVE-2026-44960 is a cross-site scripting vulnerability in Revive Adserver, published on 23 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A stored XSS can be exploited by leveraging the usernames as an attack vector. When an admin user viewed the audit log details for affected entries, any malicious JavaScript payload embedded in the username would be executed due to missing output sanitisation. Proper escaping has been added to the audit log details output.
Weakness: CWE-79
Which versions are affected by CVE-2026-44960?
How do I fix CVE-2026-44960?
No fix has been published for CVE-2026-44960 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-2026-44960 being exploited?
There is no known exploitation of CVE-2026-44960 in the wild and no public exploit code.
Sources
Also known as GHSA-x9c4-8c9x-8j5h.