WordPress up to 4.8.1 Plugin Editor cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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4.9$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in WordPress. Affected by this issue is some unknown functionality of the component Plugin Editor. Such manipulation leads to cross site scripting. This vulnerability is uniquely identified as CVE-2017-14721. The attack can be launched remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in WordPress (Content Management System) and classified as problematic. Affected by this issue is an unknown code block of the component Plugin Editor. 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. CVE summarizes:

Before version 4.8.2, WordPress allowed Cross-Site scripting in the plugin editor via a crafted plugin name.

The bug was discovered 09/19/2017. The weakness was disclosed 09/23/2017 by Security Team (Alex) with WordPress Security Team (Website). The advisory is available at securityfocus.com. This vulnerability is handled as CVE-2017-14721 since 09/23/2017. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

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 4.8.2 eliminates this vulnerability. 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†). The entries VDB-107039, VDB-107040, VDB-107041 and VDB-107043 are pretty similar. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Name

Version

License

Website

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

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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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 4.8.2

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: 41412⛔
Researcher: Security Team (Alex)
Organization: WordPress Security Team
Status: Confirmed

CVE: CVE-2017-14721 (🔍)
GCVE (CVE): GCVE-0-2017-14721
GCVE (VulDB): GCVE-100-107042

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 08:35
Changes: 09/24/2017 09:45 (84), 06/07/2020 21:02 (4), 01/14/2021 08:35 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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