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.
5.9	$0-$5k	0.00

Summaryinfo

A vulnerability described as problematic has been identified in WordPress up to 4.2.8/4.3.4/4.4.3/4.5.2. Affected by this issue is some unknown functionality of the component Attachment Name Handler. Such manipulation leads to cross site scripting. This vulnerability is referenced as CVE-2016-5834. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is recommended. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Detailsinfo

A vulnerability was found in WordPress up to 4.2.8/4.3.4/4.4.3/4.5.2 (Content Management System). It has been rated as problematic. Affected by this issue is an unknown code block of the component Attachment Name Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, and integrity.

The weakness was published 06/18/2016 as WordPress 4.5.3 Maintenance and Security Release as confirmed news (Website). The advisory is shared for download at wordpress.org. The public release has been coordinated with the vendor. This vulnerability is handled as CVE-2016-5834 since 06/23/2016. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007. The advisory points out:

WordPress versions 4.5.2 and earlier are affected by several security issues (...)

The vulnerability scanner Nessus provides a plugin with the ID 91840 (FreeBSD : wordpress -- multiple vulnerabilities (bfcc23b6-3b27-11e6-8e82-002590263bf5)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 175805 (Debian Security Update for wordpress (DSA 3639-1)).

Upgrading to version 4.2.9, 4.3.5, 4.4.4 or 4.5.3 eliminates this vulnerability. The upgrade is hosted for download at github.com. A possible mitigation has been published immediately after the disclosure of the vulnerability. The news contains the following remark:

In addition to the security issues above, WordPress 4.5.3 fixes 17 bugs from 4.5, 4.5.1 and 4.5.2.

The vulnerability is also documented in the databases at Tenable (91840), SecurityFocus (BID 91368†) and SecurityTracker (ID 1036163†). Similar entries are available at VDB-87564, VDB-88099, VDB-88101 and VDB-88102. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Content Management System

Name

• WordPress

Version

• 4.2
• 4.2 Beta1
• 4.2 Beta2
• 4.2 Beta3
• 4.2 Beta4
• 4.2 rc1
• 4.2 rc2
• 4.2 rc3
• 4.2 rc4
• 4.2.1
• 4.2.2
• 4.2.3
• 4.2.4
• 4.2.4 rc1
• 4.2.5
• 4.2.6
• 4.2.7
• 4.2.8
• 4.3
• 4.3 Beta1
• 4.3 Beta2
• 4.3 Beta3
• 4.3 Beta4
• 4.3 rc1
• 4.3 rc2
• 4.3 rc3
• 4.3.0
• 4.3.1
• 4.3.2
• 4.3.3
• 4.3.4
• 4.4
• 4.4 Beta1
• 4.4 Beta2
• 4.4 Beta3
• 4.4 Beta4
• 4.4 rc1
• 4.4.0
• 4.4.1
• 4.4.2
• 4.4.3
• 4.5
• 4.5 Beta1
• 4.5 Beta2
• 4.5 Beta3
• 4.5 Beta4
• 4.5 rc1
• 4.5 rc2
• 4.5 rc3
• 4.5.1
• 4.5.1 rc1
• 4.5.1 rc2
• 4.5.2

License

• open-source

Website

• Product: https://wordpress.com/

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.1
VulDB Meta Temp Score: 5.9

VulDB Base Score: 6.1
VulDB Temp Score: 5.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔍

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: 🔍

Physical: No
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

Nessus ID: 91840
Nessus Name: FreeBSD : wordpress -- multiple vulnerabilities (bfcc23b6-3b27-11e6-8e82-002590263bf5)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 100087
OpenVAS Name: Fedora Update for wordpress FEDORA-2016-7db496f6f2
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: WordPress 4.2.9/4.3.5/4.4.4/4.5.3
Patch: github.com

Timelineinfo

06/18/2016 🔍
06/18/2016 +0 days 🔍
06/22/2016 +4 days 🔍
06/23/2016 +1 days 🔍
06/23/2016 +0 days 🔍
06/24/2016 +1 days 🔍
06/27/2016 +3 days 🔍
06/29/2016 +2 days 🔍
08/24/2022 +2247 days 🔍

Sourcesinfo

Product: wordpress.com

Advisory: WordPress 4.5.3 Maintenance and Security Release
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2016-5834 (🔍)
GCVE (CVE): GCVE-0-2016-5834
GCVE (VulDB): GCVE-100-88100

OVAL: 🔍

SecurityFocus: 91368 - WordPress Prior to 4.5.3 Multiple Cross Site Scripting Vulnerabilities
SecurityTracker: 1036163

See also: 🔍

Entryinfo

Created: 06/24/2016 10:52 AM
Updated: 08/24/2022 02:38 PM
Changes: 06/24/2016 10:52 AM (74), 05/08/2019 01:12 PM (13), 08/24/2022 02:38 PM (4)
Complete: 🔍
Cache ID: 244:661:40

Discussion

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