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Vulnerability record · CVE-2017-5539 · published 23 January 2017

CVE-2017-5539: B2evolution path traversal vulnerability

B2evolution · B2evolution

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.

9.1 CVSS 3.0 Critical EPSS 4.2% · top 9.4% CWE-22 · Path traversal
9.1CVSS 3.0 base score, v2 9.0
4.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References
17 Jun 2026Last modified by NVD

Description

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.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://b2evolution.net/downloads/6-8-5 PatchVendor Advisory
http://www.securityfocus.com/bid/95700 Third Party AdvisoryVDB Entry
https://github.com/b2evolution/b2evolution/commit/e35f7c195d8c1103d2d981a48cda5ab45ecac48a Issue TrackingPatchThird Party Advisory
https://github.com/b2evolution/b2evolution/issues/36 Issue TrackingPatchThird Party Advisory
http://b2evolution.net/downloads/6-8-5 PatchVendor Advisory
http://www.securityfocus.com/bid/95700 Third Party AdvisoryVDB Entry
https://github.com/b2evolution/b2evolution/commit/e35f7c195d8c1103d2d981a48cda5ab45ecac48a Issue TrackingPatchThird Party Advisory
https://github.com/b2evolution/b2evolution/issues/36 Issue TrackingPatchThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2016-8901B2evolution injection vulnerabilityb2evolution 6.7.6 suffer from an Object Injection vulnerability in /htsrv/call_plugin.php.EPSS 2.4%9.8CVE-2017-1000423B2evolution improper input validation vulnerabilityb2evolution version 6.6.0 - 6.8.10 is vulnerable to input validation (backslash and single quote escape) in basic install functionality resulting in …EPSS 2.4%9.1CVE-2022-30935B2evolution vulnerabilityAn authorization bypass in b2evolution allows remote, unauthenticated attackers to predict password reset tokens for any user through the use of a ba…EPSS 1.4%8.8CVE-2021-28242B2evolution sql injection vulnerabilitySQL Injection in the "evoadm.php" component of b2evolution v7.2.2-stable allows remote attackers to obtain sensitive database information by injectin…EPSS 5.0%8.1CVE-2017-5480B2evolution path traversal vulnerabilityDirectory traversal vulnerability in inc/files/files.ctrl.php in b2evolution through 6.8.3 allows remote authenticated users to read or delete arbitr…EPSS 2.5%7.5CVE-2016-9479B2evolution vulnerabilityThe "lost password" functionality in b2evolution before 6.7.9 allows remote attackers to reset arbitrary user passwords via a crafted request.EPSS 1.8%7.5CVE-2007-2681B2evolution vulnerabilityDirectory traversal vulnerability in blogs/index.php in b2evolution 1.6 allows remote attackers to include and execute arbitrary local files via a ..…EPSS 1.5%7.5CVE-2007-2358B2evolution vulnerabilityMultiple PHP remote file inclusion vulnerabilities in b2evolution allow remote attackers to execute arbitrary PHP code via a URL in the (1) inc_path …EPSS 2.5%

Source: NIST National Vulnerability Database (record CVE-2017-5539), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.