CVE-2026-50740 Revive CVE debrief

Who should care

Administrators and users of Revive Adserver 6.0.7 and earlier versions should be aware of this vulnerability and take necessary actions to mitigate it. This vulnerability can be exploited by low-privileged users, making it a concern for organizations that use Revive Adserver. Additionally, organizations that have integrated Revive Adserver into their systems should also be aware of this vulnerability and take steps to protect themselves.

Technical summary

The vulnerability exists in the zone-include.php script of Revive Adserver 6.0.7 and earlier versions. The script does not properly sanitize user input, allowing an attacker to inject malicious code. The vulnerability can be exploited through the refresh parameter of the iFrame invocation tag. The CVSS vector for this vulnerability is CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N, indicating a medium severity level. The vulnerability was reported through HackerOne and is tracked as issue 3780806.

Defensive priority

This vulnerability has a medium severity level with a CVSS score of 5.4. Organizations should prioritize patching or mitigating this vulnerability to prevent potential attacks.

Recommended defensive actions

• Apply the patch or upgrade to Revive Adserver 6.0.8 or later versions.
• Restrict access to the zone-include.php script.
• Implement additional security measures such as input validation and output encoding.
• Monitor for suspicious activity and implement incident response plans.
• Review and update incident response plans to address potential XSS attacks.

Evidence notes

The vulnerability was reported through HackerOne and is tracked as issue 3780806. The CVE record and NVD detail pages provide additional information about the vulnerability. The source item URL provides further details about the vulnerability, including the CVSS vector and CPE criteria.

Official resources