Intel

AIKIDO-2025-10041

johnpbloch/wordpress-core is vulnerable to Cross-site Scripting (XSS)

Cross-site Scripting (XSS) Pre-CVE
Found by Aikido Intel before public disclosure or CVE publication.
Published Jan 24, 2025

51

Medium Risk

This Affects:

PHPjohnpbloch/wordpress-core
1.0.0 - 3.7.39
Fixed in 3.7.40
3.8.0 - 3.8.39
Fixed in 3.8.40
3.9.0 - 3.9.37
Fixed in 3.9.38
4.0.0 - 4.0.36
Fixed in 4.0.37
4.1.0 - 4.1.36
Fixed in 4.1.37
4.2.0 - 4.2.33
Fixed in 4.2.34
4.3.0 - 4.3.29
Fixed in 4.3.30
4.4.0 - 4.4.28
Fixed in 4.4.29
4.5.0 - 4.5.27
Fixed in 4.5.28
4.6.0 - 4.6.24
Fixed in 4.6.25
4.7.0 - 4.7.24
Fixed in 4.7.25
4.8.0 - 4.8.20
Fixed in 4.8.21
4.9.0 - 4.9.21
Fixed in 4.9.22
5.0.0 - 5.0.17
Fixed in 5.0.18
5.1.0 - 5.1.14
Fixed in 5.1.15
5.2.0 - 5.2.16
Fixed in 5.2.17
5.3.0 - 5.3.13
Fixed in 5.3.14
5.4.0 - 5.4.11
Fixed in 5.4.12
5.5.0 - 5.5.10
Fixed in 5.5.11
5.6.0 - 5.6.9
Fixed in 5.6.10
5.7.0 - 5.7.7
Fixed in 5.7.8
5.8.0 - 5.8.5
Fixed in 5.8.6
5.9.0 - 5.9.4
Fixed in 5.9.5
6.0.0 - 6.0.2
Fixed in 6.0.3
Are you affected? Scan for Free

TL;DR

Affected versions of this package are vulnerable to Cross-site Scripting (XSS) due to inadequate escaping of the Blog Name field. An attacker can exploit this vulnerability by injecting a crafted payload into the Blog Name, which is then rendered in the application without proper sanitization. This allows the attacker to execute arbitrary JavaScript in the context of the victim's browser, potentially leading to data theft, session hijacking, or other malicious actions.

Who does this affect?

You are affected if you are using a version that falls within the vulnerable range.

Background info

johnpbloch/wordpress-core is vulnerable to Cross-site Scripting (XSS) in versions 1.0.0 - 3.7.39, 3.8.0 - 3.8.39, 3.9.0 - 3.9.37, 4.0.0 - 4.0.36, 4.1.0 - 4.1.36, 4.2.0 - 4.2.33, 4.3.0 - 4.3.29, 4.4.0 - 4.4.28, 4.5.0 - 4.5.27, 4.6.0 - 4.6.24, 4.7.0 - 4.7.24, 4.8.0 - 4.8.20, 4.9.0 - 4.9.21, 5.0.0 - 5.0.17, 5.1.0 - 5.1.14, 5.2.0 - 5.2.16, 5.3.0 - 5.3.13, 5.4.0 - 5.4.11, 5.5.0 - 5.5.10, 5.6.0 - 5.6.9, 5.7.0 - 5.7.7, 5.8.0 - 5.8.5, 5.9.0 - 5.9.4 and 6.0.0 - 6.0.2.

How to fix this

Upgrade the johnpbloch/wordpress-core library to a patch version.