CVE-2026-34915 Revive CVE debrief

Who should care

This vulnerability affects users of Revive Adserver 6.0.6 and earlier versions. As the vulnerability allows for blind SQL injection attacks, it is crucial for users with low-privileged access to be cautious. Organizations using Revive Adserver should prioritize updating to a version with improved input sanitization to mitigate the risk of exploitation.

Technical summary

The CVE-2026-34915 vulnerability is caused by a lack of proper input sanitization in the zone-include.php script of Revive Adserver 6.0.6 and earlier. Specifically, the clientid parameter is vulnerable to blind SQL injection attacks. The vulnerability has been addressed by improving input sanitization to ensure that all parameters are properly validated. The CVSS score for this vulnerability is 6.1, indicating a MEDIUM severity level. The vector for this CVSS score is CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Defensive priority

Given the MEDIUM severity and potential for exploitation, defenders should prioritize patching Revive Adserver 6.0.6 and earlier versions. Improved input sanitization has been implemented to prevent blind SQL injection attacks.

Recommended defensive actions

• Update Revive Adserver to a version with improved input sanitization.
• Review and validate user input for all parameters processed by the zone-include.php script.
• Implement additional monitoring to detect potential SQL injection attacks.
• Restrict access to the zone-include.php script for low-privileged users.
• Regularly review and update Revive Adserver to ensure the latest security patches are applied.

Evidence notes

The CVE-2026-34915 vulnerability was identified and reported through Hackerone. The vulnerability details were obtained from the CVE record and the NVD database. The CVE record and NVD detail provide official information about the vulnerability, its severity, and potential impact.

Official resources