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

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.

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

References and patches

• Product Repository product
• Patch Commit patch
• https://www.vulncheck.com/advisories/reflected-xss-in-projectsend-thumbnails-regenerate-php-via-start-date-en…