CVE-2026-50739Network attack vector

Cross-manager tracker linking via missing ownership check

Published Jun 26, 2026 · Updated Jun 26, 2026

Improper access control in Revive Adserver 6.0.7 and earlier allows remote authenticated users to link trackers across managers. tracker-campaigns.php processes the reverse tracker-to-campaign linking operation without verifying that both records belong to the same advertiser. Low-privileged access to the same instance is sufficient, and exploitation creates inconsistent cross-manager ownership relationships without reported confidentiality or availability impact.

CVSS severity4.3
Medium
EPSS probability0.49%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Revive Adserver 6.0.7 and earlier allows remote authenticated users to link trackers across managers. tracker-campaigns.php processes the reverse tracker-to-campaign linking operation without verifying that both records belong to the same advertiser. Low-privileged access to the same instance is sufficient, and exploitation creates inconsistent cross-manager ownership relationships without reported confidentiality or availability impact.

The record

CVE
CVE-2026-50739
Published
Jun 26, 2026
Updated
Jun 26, 2026
Vendor
Revive Adserver Project
Product
Revive Adserver
Classifications
CWE-284, T1565.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 26, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 26, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=6.0.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Revive Adserver Project · Revive Adserverversion=0 <=6.0.7

Published CVSS scores

4.3HackerOneCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control
T1565.001Stored Data Manipulation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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