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Vulnerabilities CVE-2026-53992

CVE-2026-53992

Medium
Open
TLP:CLEAR

Reflected XSS in ProjectSend thumbnails-regenerate.php via start_date / end_date Parameters

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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.

Details

CVSS Score
5.1
EPSS Score
0.23%

14.2th percentile

CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
Confidence
90%
Published
Aug 5, 2026
Last Modified
Aug 5, 2026
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