CVE-2025-34120 Information

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.

Reference

https://packetstorm.news/files/id/180855 https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/auxiliary/admin/http/limesurvey_file_download.rb https://sec-consult.com/vulnerability-lab/advisory/multiple-critical-vulnerabilities-in-lime-survey/ https://web.archive.org/web/20210123073627/https://www.limesurvey.org/blog/22-security/136-limesurvey-security-advisory-10-2015 https://www.vulncheck.com/advisories/limesurvey-unauthenticated-arbitrary-file-download

CNNVD-202507-2275 (Published: 2025-07-16)

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