Vulnerability Details : CVE-2017-5539

The patch for directory traversal (CVE-2017-5480) in b2evolution version 6.8.4-stable has a bypass vulnerability. An attacker can use ..\/ to bypass the filter rule. Then, this attacker can exploit this vulnerability to delete or read any files on the server. It can also be used to determine whether a file exists.
Published 2017-01-23 07:59:01
Updated 2019-10-03 00:03:26
Source MITRE
View at NVD,   CVE.org
Vulnerability category: Directory traversal

Products affected by CVE-2017-5539

Exploit prediction scoring system (EPSS) score for CVE-2017-5539

EPSS FAQ
0.13%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 47 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2017-5539

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
9.0
 HIGH AV:N/AC:L/Au:N/C:C/I:P/A:P
10.0
8.5
 NIST
9.1
 CRITICAL CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
3.9
5.2
 NIST

CWE ids for CVE-2017-5539

  • The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2017-5539

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