WordPress Core 5.9-6.3.1 - Authenticated(Contributor+) Stored Cross-Site Scripting via Navigation Attributes

2023-10-12 00:00

Rafie Muhammad

Strategic Overview

Status

Patched in 5.9.8

Affected CoreWordPress 6.3

Affected Version5.9 – 6.3.1 · 5 branches

CVSS6.4Medium

CVECVE-2023-38000

View all WordPress 6.3 vulnerabilities

Vulnerability Overview

WordPress Core is vulnerable to Stored Cross-Site Scripting via the arrow navigation block attributes in versions between 5.9 and 6.3.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers with contributor-level privileges and above to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Technical Analysis

REMEDIATION: Update to one of the following versions, or a newer patched version: 5.9.8, 6.0.6, 6.1.4, 6.2.3, 6.3.2 --- 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-2023-38000 https://www.wordfence.com/threat-intel/vulnerabilities/id/66b1f597-f357-4525-8c67-e0be3a07bcfa

CVSS Vector

6.4

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

Base

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

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