WordPress up to 4.8.1 oEmbed Discovery 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.
4.9	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in WordPress up to 4.4.10/4.5.9/4.6.6/4.7.5/4.8.1. This issue affects some unknown processing of the component oEmbed Discovery. The manipulation leads to cross site scripting. This vulnerability is referenced as CVE-2017-14724. Remote exploitation of the attack is possible. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in WordPress up to 4.4.10/4.5.9/4.6.6/4.7.5/4.8.1 (Content Management System). It has been rated as problematic. This issue affects an unknown functionality of the component oEmbed Discovery. 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 integrity. The summary by CVE is:

Before version 4.8.2, WordPress was vulnerable to cross-site scripting in oEmbed discovery.

The bug was discovered 09/19/2017. The weakness was published 09/23/2017 by Security Team (Alex) with WordPress Security Team (Website). The advisory is shared at securityfocus.com. The identification of this vulnerability is CVE-2017-14724 since 09/23/2017. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

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 $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 103793 (Debian DSA-3997-1 : 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 176177 (Debian Security Update for wordpress (DSA 3997-1)).

Upgrading to version 4.4.11, 4.5.10, 4.6.7, 4.7.6 or 4.8.2 eliminates this vulnerability. The upgrade is hosted for download at core.trac.wordpress.org. A possible mitigation has been published 3 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (103793), SecurityFocus (BID 100912†) and SecurityTracker (ID 1039553†). Similar entries are available at VDB-107039, VDB-107040, VDB-107041 and VDB-107042. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Content Management System

Name

• WordPress

Version

• 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
• 4.4.4
• 4.4.5
• 4.4.6
• 4.4.7
• 4.4.8
• 4.4.9
• 4.4.10
• 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
• 4.5.3
• 4.5.4
• 4.5.5
• 4.5.6
• 4.5.7
• 4.5.8
• 4.5.9
• 4.6
• 4.6 Beta1
• 4.6 Beta2
• 4.6 Beta3
• 4.6 Beta4
• 4.6 rc1
• 4.6 rc2
• 4.6 rc3
• 4.6 rc4
• 4.6.1
• 4.6.1 rc1
• 4.6.2
• 4.6.3
• 4.6.4
• 4.6.5
• 4.6.6
• 4.7
• 4.7 Beta1
• 4.7 Beta2
• 4.7 Beta3
• 4.7 Beta4
• 4.7 rc1
• 4.7 rc2
• 4.7 rc3
• 4.7.1
• 4.7.1 rc1
• 4.7.2
• 4.7.3
• 4.7.3 rc1
• 4.7.4
• 4.7.4 rc1
• 4.7.5
• 4.8
• 4.8 Beta1
• 4.8 Beta2
• 4.8 rc1
• 4.8 rc2
• 4.8.1

License

• open-source

Website

• Product: https://wordpress.com/

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
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: 103793
Nessus Name: Debian DSA-3997-1 : wordpress - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 53378
OpenVAS Name: Debian Security Advisory DSA 3997-1 (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 4.4.11/4.5.10/4.6.7/4.7.6/4.8.2

Timelineinfo

09/19/2017 🔍
09/19/2017 +0 days 🔍
09/23/2017 +4 days 🔍
09/23/2017 +0 days 🔍
09/23/2017 +0 days 🔍
09/24/2017 +1 days 🔍
10/10/2017 +16 days 🔍
10/11/2017 +1 days 🔍
10/12/2017 +1 days 🔍
01/14/2021 +1190 days 🔍

Sourcesinfo

Product: wordpress.com

Advisory: 41448⛔
Researcher: Security Team (Alex)
Organization: WordPress Security Team
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-14724 (🔍)
GCVE (CVE): GCVE-0-2017-14724
GCVE (VulDB): GCVE-100-107045

OVAL: 🔍

SecurityFocus: 100912 - WordPress Prior to 4.8.2 Multiple Input Validation Security Vulnerabilities
SecurityTracker: 1039553

See also: 🔍

Entryinfo

Created: 09/24/2017 09:45
Updated: 01/14/2021 08:45
Changes: 09/24/2017 09:45 (86), 06/07/2020 20:33 (4), 01/14/2021 08:45 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Discussion

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