CVE-2025-52666: Low severity Revive Adserver vulnerability

Published Nov 20, 2025
·
Updated

Improper neutralisation of format characters in the settings of Revive Adserver 5.5.2 and 6.0.1 and earlier versions causes an administrator user to disable the admin user console due to a fatal PHP error.

Affected Software

3 affected components
Revive Adserver<6.0.1
revive-adserver Revive Adserver<=5.5.2
revive-adserver Revive Adserver>=6.0.0<=6.0.1

Event History

Nov 20, 2025
CVE Published
via MITRE·07:10 PM
Data Sourced
via MITRE·07:10 PM
DescriptionSeverity
Data Sourced
via NVD·08:16 PM
DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2025-52666?

CVE-2025-52666 has been classified as a medium severity vulnerability.

2

How does CVE-2025-52666 affect Revive Adserver?

CVE-2025-52666 can lead to a fatal PHP error that disables the admin user console in Revive Adserver.

3

Which versions of Revive Adserver are affected by CVE-2025-52666?

CVE-2025-52666 affects Revive Adserver versions 5.5.2 and 6.0.1 and earlier.

4

How do I fix CVE-2025-52666?

To mitigate CVE-2025-52666, it is recommended to upgrade to the latest version of Revive Adserver that addresses this vulnerability.

5

What should I do if I cannot upgrade to fix CVE-2025-52666?

If an upgrade is not possible, review and restrict user permissions and monitor for unusual activity as interim measures against CVE-2025-52666.

Contact

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