WordPress Core < 4.2.2 - Cross-Site Scripting via Comments

2015-05-07 00:00

Rice Adu

Strategic Overview

Status

Patched in 3.7.8

Affected CoreWordPress 4.2

Affected Version3.7 – 4.2.1 · 7 branches

CVSS7.2High

CVECVE-2015-8834

View all WordPress 4.2 vulnerabilities

Vulnerability Overview

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.

Technical Analysis

REMEDIATION: Update to one of the following versions, or a newer patched version: 3.7.8, 3.8.8, 3.9.6, 4.0.5, 4.1.5, 4.2.2 --- IDENTIFIER: CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) 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.

External References

https://www.cve.org/CVERecord?id=CVE-2015-8834 https://www.wordfence.com/threat-intel/vulnerabilities/id/7dff5a77-a5d6-4aba-bf39-aa110a4f4996

CVSS Vector

7.2

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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