Threats Tagged 'cve-2026-34161'
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Threats Tagged 'cve-2026-34161'
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CVE-2026-34161: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in chamilo chamilo-lmsCVE-2026-34161 0 Chamilo LMS is an open-source learning management system. In versions prior to 2.0.0-RC.3, a Stored Cross-Site Scripting (XSS) vulnerability exists in the social post attachment upload functionality, where an authenticated user can upload a malicious HTML file containing JavaScript via the /api/social_post_attachments endpoint. The uploaded file is served back from the application at the generated contentUrl without sanitization, content type restrictions, or a Content-Disposition: attachment header, causing the JavaScript to execute in the browser within the application's origin. Because the payload is stored server-side and runs in the trusted origin, an attacker can perform session hijacking, account takeover, privilege escalation (if an admin views the link), and arbitrary actions on behalf of the victim. This issue has been fixed in version 2.0.0-RC.3. Join the discussion | CVE Database V5 | 04/14/2026, 21:12:48 UTC Added: 04/14/2026, 21:17:17 UTC |
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