BaseFortify

Publication date: 2026-01-20

Last updated on: 2026-01-30

Assigner: HackerOne

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 Scores

EPSS Scores

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Meta Information

Published

2026-01-20

Last Modified

2026-01-30

Generated

2026-07-06

AI Q&A

2026-01-20

EPSS Evaluated

2026-07-05

NVD

CVE-2026-21640

EUVD

EUVD-2026-3329

Affected Vendors & Products

Vendor	Product	Version / Range
aquaplatform	revive_adserver	From 6.0.0 (inc) to 6.0.4 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-134	The product uses a function that accepts a format string as an argument, but the format string originates from an external source.

Attack-Flow Graph

Executive Summary

This vulnerability is a format string injection in the Revive Adserver settings. When certain character combinations are entered into a setting, it can cause a fatal PHP error that disables the admin user console.

Impact Analysis

The vulnerability can impact you by disabling the admin user console of the Revive Adserver, potentially preventing administrative access and management of the ad server.

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