WordPress 3.6 functions.php get_allowed_mime_types 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.
3.4$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in WordPress 3.6. This affects the function get_allowed_mime_types of the file wp-includes/functions.php. The manipulation results in cross site scripting. This vulnerability is known as CVE-2013-5739. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as problematic has been found in WordPress 3.6 (Content Management System). Affected is the function get_allowed_mime_types of the file wp-includes/functions.php. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as 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. This is going to have an impact on integrity. CVE summarizes:

The default configuration of WordPress before 3.6.1 does not prevent uploads of .swf and .exe files, which might make it easier for remote authenticated users to conduct cross-site scripting (XSS) attacks via a crafted file, related to the get_allowed_mime_types function in wp-includes/functions.php.

The weakness was published 09/11/2013 as confirmed changelog entry (Website). The advisory is shared for download at codex.wordpress.org. The public release has been coordinated with the vendor. This vulnerability is traded as CVE-2013-5739 since 09/11/2013. It is possible to launch the attack remotely. The requirement for exploitation is a authentication. 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.

By approaching the search of inurl:wp-includes/functions.php it is possible to find vulnerable targets with Google Hacking. The vulnerability scanner Nessus provides a plugin with the ID 69895 (Debian DSA-2757-1 : wordpress - several vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 12751 (WordPress Multiple Security Vulnerabilities).

Upgrading to version 3.6.1 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at core.trac.wordpress.org. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (87145), Tenable (69895), SecurityFocus (BID 62421†), OSVDB (97210†) and Secunia (SA54807†). Similar entries are available at VDB-10261, VDB-10262, VDB-10263 and VDB-10264. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 69895
Nessus Name: Debian DSA-2757-1 : wordpress - several vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 892757
OpenVAS Name: Debian Security Advisory DSA 2757-1 (wordpress - several vulnerabilities
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 3.6.1
Patch: core.trac.wordpress.org

Timelineinfo

09/11/2013 🔍
09/11/2013 +0 days 🔍
09/11/2013 +0 days 🔍
09/11/2013 +0 days 🔍
09/12/2013 +1 days 🔍
09/12/2013 +0 days 🔍
09/13/2013 +1 days 🔍
09/16/2013 +3 days 🔍
09/22/2013 +6 days 🔍
05/24/2021 +2801 days 🔍

Sourcesinfo

Product: wordpress.com

Advisory: 25322
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2013-5739 (🔍)
GCVE (CVE): GCVE-0-2013-5739
GCVE (VulDB): GCVE-100-10260

OVAL: 🔍
IAVM: 🔍

X-Force: 87145
SecurityFocus: 62421 - WordPress 'get_allowed_mime_types()' Function CVE-2013-5739 Remote Security Weakness
Secunia: 54807 - Debian update for wordpress, Moderately Critical
OSVDB: 97210
Vulnerability Center: 41560 - WordPress <3.6.1 Improper Restriction of '.swf\x27 and \x27.exe\x27 Uploads Allows XSS Attacks via a Crafted File, Medium

See also: 🔍

Entryinfo

Created: 09/13/2013 17:03
Updated: 05/24/2021 15:35
Changes: 09/13/2013 17:03 (77), 05/11/2017 08:58 (10), 05/24/2021 15:29 (3), 05/24/2021 15:35 (1)
Complete: 🔍
Committer:
Cache ID: 216:9EC:103

Once again VulDB remains the best source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you want to use VulDB in your project?

Use the official API to access entries easily!