VULNERABILITY INTELLIGENCE
CVE-2025-34120
EPSS probability1.99%
CISA KEVNot currently listed
Published2025-07-16
Last modified2026-06-17
Description
An unauthenticated file download vulnerability exists in LimeSurvey versions from 2.0+ up to and including 2.06+ Build 151014. The application fails to validate serialized input to the admin backup endpoint (`index.php/admin/update/sa/backup`), allowing attackers to specify arbitrary file paths using a crafted `datasupdateinfo` payload. The files are packaged in a ZIP archive and made available for download without authentication. This vulnerability can be exploited to read arbitrary files on the host system, including sensitive OS and configuration files.
Weakness classification
- disclosure@vulncheck.com: CWE-22