CVE-2023-28931

WordPress Post Connector Plugin <= 1.0.9 is vulnerable to Cross Site Scripting (XSS)

Severity Score

4.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

Auth. (admin+) Stored Cross-Site Scripting (XSS) vulnerability in Never5 Post Connector plugin <= 1.0.9 versions.

Vulnerabilidad de Cross-Site Scripting (XSS) almacenado con necesidad de autenticación (permisos de administrador o superior) en el plugin Never5 Post Connector en versiones anteriores, e incluyendo la 1.0.9.

The Post Connector plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in versions up to, and including, 1.0.9 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only impacts multi-site installations and installations where unfiltered_html has been disabled.

*Credits: Juampa Rodríguez (Patchstack Alliance)

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

Low

Attack Vector

Network

Attack Complexity

High

Privileges Required

High

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2023-03-28 CVE Reserved
2023-07-20 CVE Published
2024-08-14 EPSS Updated
2024-09-25 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CAPEC

CAPEC-592: Stored XSS

References (1)

URL	Tag	Source
https://patchstack.com/database/vulnerability/post-connector/wordpress-post-connector-plugin-1-0-9-cross-site-scripting-xss-vulnerability?_s_id=cve	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Never5 Search vendor "Never5"		Post Connector Search vendor "Never5" for product "Post Connector"				<= 1.0.9 Search vendor "Never5" for product "Post Connector" and version " <= 1.0.9"		wordpress		Affected