Quick answers
- Is CVE-2026-108565 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-108565 being exploited in the wild.
- How severe is CVE-2026-108565?
- Medium severity, with a CVSS score of 4.7, published 11 November 2026.
- Which products and versions are affected?
- Revive Adserver 6.0.8 and earlier.
- Is there a fix for CVE-2026-108565?
- Yes: fixed in Revive Adserver 6.0.9. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-108565 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-108565?
- Check whether you run Revive Adserver at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- Fixed in: Revive Adserver 6.0.9
Technical details
A reflected XSS vulnerability exists in the popup invocation parameters (top, left, timeout, delay) of Revive Adserver versions 6.0.8 and earlier, which are included in HTML attributes without proper encoding. An unauthenticated attacker can exploit this by crafting a malicious URL that, when visited by an authenticated user, executes arbitrary JavaScript in their browser context. Exploitation requires an existing popup zone, which can only be created via the administrator API.
Affected products
- Revive Adserver 6.0.8 and earlier
Timeline
- 2026-11-11: disclosed
- 2026-11-11: patched: Fixed in version 6.0.9