WordPress up to 4.7.2 Media File Metadata wp-includes/media.php renderTracks cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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4.4$0-$5k0.00

Summaryinfo

A vulnerability was found in WordPress up to 4.7.2. It has been declared as problematic. The impacted element is the function renderTracks of the file wp-includes/media.php of the component Media File Metadata Handler. Executing a manipulation can lead to cross site scripting. This vulnerability is tracked as CVE-2017-6814. The attack can be launched remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in WordPress up to 4.7.2 (Content Management System) and classified as problematic. This vulnerability affects the function renderTracks of the file wp-includes/media.php of the component Media File Metadata Handler. The manipulation 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:

In WordPress before 4.7.3, there is authenticated Cross-Site Scripting (XSS) via Media File Metadata. This is demonstrated by both (1) mishandling of the playlist shortcode in the wp_playlist_shortcode function in wp-includes/media.php and (2) mishandling of meta information in the renderTracks function in wp-includes/js/mediaelement/wp-playlist.js.

The bug was discovered 03/07/2017. The weakness was disclosed 03/12/2017 by Yorick Koster (oss-sec). The advisory is shared for download at openwall.com. This vulnerability was named CVE-2017-6814 since 03/11/2017. The attack can be initiated remotely. Required for exploitation is a single 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.

The vulnerability was handled as a non-public zero-day exploit for at least 4 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:wp-includes/media.php it is possible to find vulnerable targets with Google Hacking. The vulnerability scanner Nessus provides a plugin with the ID 97797 (Debian DLA-860-1 : wordpress security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 175994 (Debian Security Update for wordpress (DSA 3815-1)).

Upgrading to version 3.7.19, 3.8.19, 3.9.17, 4.0.16, 4.1.16, 4.2.13, 4.3.9, 4.4.8, 4.5.7, 4.6.4 or 4.7.3 eliminates this vulnerability. The upgrade is hosted for download at github.com. A possible mitigation has been published 5 days after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (97797), SecurityFocus (BID 96601†) and SecurityTracker (ID 1037959†). Additional details are provided at sumofpwn.nl. The entries VDB-97853, VDB-97854, VDB-97855 and VDB-97856 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.4

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

NVD Base Score: 5.4
NVD Vector: 🔍

CVSSv2info

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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: 🔍

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Nessus ID: 97797
Nessus Name: Debian DLA-860-1 : wordpress security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 703815
OpenVAS Name: Debian Security Advisory DSA 3815-1 (wordpress - security update)
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 3.7.19/3.8.19/3.9.17/4.0.16/4.1.16/4.2.13/4.3.9/4.4.8/4.5.7/4.6.4/4.7.3

Timelineinfo

03/06/2017 🔍
03/07/2017 +1 days 🔍
03/11/2017 +4 days 🔍
03/11/2017 +0 days 🔍
03/12/2017 +1 days 🔍
03/12/2017 +0 days 🔍
03/17/2017 +5 days 🔍
03/20/2017 +3 days 🔍
12/25/2024 +2837 days 🔍

Sourcesinfo

Product: wordpress.com

Advisory: openwall.com
Researcher: Yorick Koster
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-6814 (🔍)
GCVE (CVE): GCVE-0-2017-6814
GCVE (VulDB): GCVE-100-97852

OVAL: 🔍

SecurityFocus: 96601 - WordPress Prior to 4.7.3 Multiple Cross Site Scripting Vulnerabilities
SecurityTracker: 1037959

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 03/12/2017 08:33
Updated: 12/25/2024 21:11
Changes: 03/12/2017 08:33 (85), 06/08/2020 08:00 (2), 12/25/2024 21:11 (17)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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