CVE-2015-8834

WordPress Core < 4.2.2 - Cross-Site Scripting via Comments

Severity Score

7.2

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Cross-site scripting (XSS) vulnerability in wp-includes/wp-db.php in WordPress before 4.2.2 allows remote attackers to inject arbitrary web script or HTML via a long comment that is improperly stored because of limitations on the MySQL TEXT data type. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-3440.

Vulnerabilidad de XSS en wp-includes/wp-db.php en WordPress en versiones anteriores a 4.2.2 permite a atacantes remotos inyectar secuencias de comandos web o HTML arbitrarios a través de un comentario largo que se almacena de manera incorrecta debido a las limitaciones en el tipo de dato MySQL TEXT. NOTA: esta vulnerabilidad existe debido a una solución incompleta de CVE-2015-3440.

Several vulnerabilities were discovered in wordpress, a web blogging tool, which could allow remote attackers to compromise a site via cross-site scripting, bypass restrictions, obtain sensitive revision-history information, or mount a denial of service.

*Credits: Rice Adu,Tong Shi

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2015-05-07 CVE Published
2016-03-25 CVE Reserved
2024-08-06 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

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

CAPEC

References (3)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://codex.wordpress.org/Version_4.2.2	2016-11-28
https://wordpress.org/news/2015/05/wordpress-4-2-2	2016-11-28

URL	Date	SRC
http://www.debian.org/security/2016/dsa-3639	2016-11-28

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Wordpress Search vendor "Wordpress"		Wordpress Search vendor "Wordpress" for product "Wordpress"				<= 4.2.1 Search vendor "Wordpress" for product "Wordpress" and version " <= 4.2.1"		-		Affected