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CVE-2026-21640

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CVE-2026-21640

Published: Jan 20, 2026

Modified: Jan 21, 2026

PUBLISHED

CVSS v3.0

2.7

LOW

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.

VendorProductVersions

Revive

Revive Adserver

affected
6 - <= 6.0.4

CVSS v3.0 Details

CVSS v3.0 Vector

CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

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