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LOW · 2.7

CVE-2026-21640

HackerOne community member Faraz Ahmed (PakCyberbot) has reported a format string injection in the Revive Adserver settings. When specific character combinations are used in a setting, the admin user ...

Vulnerability Description

HackerOne community member Faraz Ahmed (PakCyberbot) has reported a format string injection in the Revive Adserver settings. When specific character combinations are used in a setting, the admin user console could be disabled due to a fatal PHP error.

CVSS Score

2.7

LOW

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE

Affected Products

VendorProductVersions
AquaplatformRevive Adserver>= 6.0.0, <= 6.0.4

Related Weaknesses (CWE)

CWE-134

References

FAQ

What is CVE-2026-21640?

CVE-2026-21640 is a vulnerability with a CVSS score of 2.7 (LOW). HackerOne community member Faraz Ahmed (PakCyberbot) has reported a format string injection in the Revive Adserver settings. When specific character combinations are used in a setting, the admin user ...

How severe is CVE-2026-21640?

CVE-2026-21640 has been rated LOW with a CVSS base score of 2.7/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-21640?

Check the references section above for vendor advisories and patch information. Affected products include: Aquaplatform Revive Adserver.