Directory traversal in b2evolution - CVE-2017-5480
Published: January 16, 2017 / Updated: January 16, 2017
Vulnerability identifier: #VU4748
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2017-5480
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: b2evolution.net
Affected software:
b2evolution
b2evolution
Detailed vulnerability description
The vulnerability allows a remote attacker to view arbitrary files on vulnerable system.
The vulnerability exists due to insufficient sanitization of user-supplied data passed "fm_selected" array parameter in "inc/files/files.ctrl.php" script. A remote authenticated attacker can use directory traversal sequences (e.g. ../) to view contents of arbitrary files on vulnerable system.
Successful exploitation of the vulnerability may allow an attacker to obtain sensitive ad system information.
How to mitigate CVE-2017-5480
Install update from GIT repository.