VDB-95355 · CVE-2017-5480 · BID 95454

b2evolution up to 6.8.3 inc/files/files.ctrl.php fm_selected path traversal

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.6	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in b2evolution up to 6.8.3. The impacted element is an unknown function of the file inc/files/files.ctrl.php. Performing a manipulation of the argument fm_selected results in path traversal. This vulnerability is known as CVE-2017-5480. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability classified as critical has been found in b2evolution up to 6.8.3 (Content Management System). This affects an unknown functionality of the file inc/files/files.ctrl.php. The manipulation of the argument fm_selected with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. 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. This is going to have an impact on confidentiality, and integrity. The summary by CVE is:

Directory traversal vulnerability in inc/files/files.ctrl.php in b2evolution through 6.8.3 allows remote authenticated users to read or delete arbitrary files by leveraging back-office access to provide a .. (dot dot) in the fm_selected array parameter.

The bug was discovered 01/15/2017. The weakness was published 01/15/2017 (Website). It is possible to read the advisory at securityfocus.com. This vulnerability is uniquely identified as CVE-2017-5480 since 01/14/2017. The exploitability is told to be easy. It is possible to initiate the attack remotely. The successful exploitation needs a authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

By approaching the search of inurl:inc/files/files.ctrl.php it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 95454†). Similar entry is available at VDB-95356. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Content Management System

Name

b2evolution

Version

License

free

Website

Product: https://github.com/b2evolution/b2evolution/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.7
VulDB Meta Temp Score: 6.6

VulDB Base Score: 5.4
VulDB Temp Score: 5.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.1
NVD Vector: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Path traversal
CWE: CWE-22
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

OpenVAS ID: 802129
OpenVAS Name: b2evolution Multiple Vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Patch: github.com

Timelineinfo

01/14/2017 🔍
01/15/2017 +1 days 🔍
01/15/2017 +0 days 🔍
01/15/2017 +0 days 🔍
01/15/2017 +0 days 🔍
01/16/2017 +1 days 🔍
05/13/2026 +3404 days 🔍

Sourcesinfo

Product: github.com

Advisory: 26841d9c81f27ad23b2f6e4bd5eaec7f2f58dfe0⛔
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-5480 (🔍)
GCVE (CVE): GCVE-0-2017-5480
GCVE (VulDB): GCVE-100-95355
SecurityFocus: 95454 - b2evolution CVE-2017-5480 Directory Traversal Vulnerability
OSVDB: - CVE-2017-5480 - b2evolution - Directory Traversal Issue

See also: 🔍

Entryinfo

Created: 01/16/2017 12:10
Updated: 05/13/2026 13:34
Changes: 01/16/2017 12:10 (53), 07/22/2020 18:05 (6), 11/01/2022 07:38 (3), 11/01/2022 07:44 (11), 05/13/2026 13:34 (21)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.