CVE-2026-53992

Medium

Description

ProjectSend r2029 contains a reflected cross-site scripting vulnerability in thumbnails-regenerate.php that allows remote attackers to inject arbitrary HTML and JavaScript by supplying unsanitized values in the start_date and end_date GET parameters, which are echoed unescaped into HTML attribute values. Attackers can craft a malicious URL that, when followed by an authenticated victim with edit_settings permissions, executes injected scripts in the application origin to steal session cookies or perform unauthorized actions including user management, file management, and application settings changes.

SeverityMedium
CVSS6.1
Exploit probability—
ProductProjectSend
PublishedAug 5, 2026
First seenAug 5, 2026

How to fix

Affected products

ProductAffected versionsFixed in
ProjectSend ProjectSendv ≤ b4ad95b—

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CVE-2026-53992 · ProjectSend · Dark Radar