Xerte Online Toolkits versions 3.15 and earlier contain an information disclosure vulnerability that allows unauthenticated attackers to retrieve the full server-side filesystem path of the application root. Attackers can send a GET request to the /setup page to access the exposed root_path value rendered in the HTML response, which enables exploitation of path-dependent vulnerabilities such as relative path traversal in connector.php.
https://xerte.org.uk/xertetoolkits_3.15_ChangeLog.html
https://xerte.org.uk/index.php/en/downloads-1/category/3-xerte-online-toolkits
https://www.vulncheck.com/advisories/xerte-online-toolkits-path-disclosure-via-setup
https://github.com/thexerteproject/xerteonlinetoolkits/issues/1527
Published: 2026-04-22
Updated: 2026-04-24
Base Score: 5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N
Severity: Medium
Base Score: 5.3
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Severity: Medium
Base Score: 6.9
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Severity: Medium
EPSS: 0.0003