VDB-95356 · CVE-2017-5494 · BID 95452

b2evolution up to 6.8.3 SWF File comment/avatar cross site scripting

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.
3.5	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in b2evolution up to 6.8.3. This issue affects some unknown processing of the component SWF File Handler. The manipulation of the argument comment/avatar leads to cross site scripting. The identification of this vulnerability is CVE-2017-5494. The attack may be initiated remotely. There is no exploit available. Once again VulDB remains the best source for vulnerability data.

Detailsinfo

A vulnerability classified as problematic was found in b2evolution up to 6.8.3 (Content Management System). This vulnerability affects some unknown functionality of the component SWF File Handler. The manipulation of the argument comment/avatar with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. CVE summarizes:

Multiple cross-site scripting (XSS) vulnerabilities in the file types table in b2evolution through 6.8.3 allow remote authenticated users to inject arbitrary web script or HTML via a .swf file in a (1) comment frame or (2) avatar frame.

The bug was discovered 01/15/2017. The weakness was released 01/15/2017 (Website). The advisory is shared for download at securityfocus.com. This vulnerability was named CVE-2017-5494 since 01/15/2017. The attack can be initiated remotely. A single authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007.

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 95452†). Entry connected to this vulnerability is available at VDB-95355. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Content Management System

Name

b2evolution

Version

License

free

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.5

VulDB Base Score: 3.5
VulDB Temp Score: 3.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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

01/15/2017 🔍
01/15/2017 +0 days 🔍
01/15/2017 +0 days 🔍
01/15/2017 +0 days 🔍
01/15/2017 +0 days 🔍
01/16/2017 +1 days 🔍
11/01/2022 +2115 days 🔍

Sourcesinfo

Advisory: 261dbd5b294e707af766691e65a177a290314a6e⛔
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-5494 (🔍)
GCVE (CVE): GCVE-0-2017-5494
GCVE (VulDB): GCVE-100-95356
SecurityFocus: 95452 - b2evolution CVE-2017-5494 Multiple Cross Site Scripting Vulnerabilities
OSVDB: - CVE-2017-5494 - b2evolution - Multiple Cross-Site Scripting Issues

See also: 🔍

Entryinfo

Created: 01/16/2017 12:10 PM
Updated: 11/01/2022 07:50 AM
Changes: 01/16/2017 12:10 PM (53), 07/22/2020 06:27 PM (6), 11/01/2022 07:50 AM (3)
Complete: 🔍
Cache ID: 18:FA6:40