CVE-2026-44958 Missing authorization in Adserver
Advertisers can bypass permissions to activate or deactivate banners in Revive Adserver, allowing unauthorized modification of ad status.
- 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-2026-44958?
CVE-2026-44958 is a medium-severity missing authorization vulnerability in Revive Adserver, published on 23 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
An access control bypass allows an advertiser‑level user to activate or deactivate a banner in Revive Adserver 6.0.6 and earlier, even when such permissions were not granted. The banner-edit.php script allowed the banner status to be overwritten solely based on banner edit permissions. The status field has been removed from the hidden form fields in the banner edit screen.
Weakness: CWE-284
Which versions are affected by CVE-2026-44958?
How do I fix CVE-2026-44958?
No fix has been published for CVE-2026-44958 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-44958 being exploited?
There is no known exploitation of CVE-2026-44958 in the wild and no public exploit code.
Sources
Also known as GHSA-hqvw-xvc4-mxq4.