CVE-2026-53992 MEDIUM

CVE-2026-53992: Reflected XSS in ProjectSend thumbnails-regenerate.php via start_date / end_date Parameters

Vendor Projectsend
Product ProjectSend
Weakness CWE-79 · XSS
Published August 5, 2026
Last update August 5, 2026

CVSS base score

5.1/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction
Confidentiality
Integrity

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

August 5, 2026 CVE published

Related vulnerabilities

04Related CVE