Vulnerability in Revive Adserver
CVE-2026-50739
A bypass for CVE‑2026‑34913 exists with proper ownership validation that had not been applied to the reverse operation of linking campaigns and trackers through the `tracker-campaigns.php` script in Revive Adserver 6.0.7 and earlier. As a result, a low‑privileged user could link their trackers to campaigns owned by other managers on the same instance, leading to inconsistent ownership relationships.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.005 (39.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 39.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Revive Adserver — versions 0
- Revive-Adserver Revive Adserver
Weakness classification (CWE)
References
- hackerone.com/reports/3780709 (Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2026-50739?
- CVE-2026-50739 is a medium-severity vulnerability in Revive Adserver, classified under Improper Access Control. CVSS score: 4.3/10. Published 2026-06-26.
- How severe is CVE-2026-50739?
- Medium severity. CVSS v3 base score is 4.3 out of 10.