CVE-2026-0734

MEDIUM
2026-01-14 [email protected]
4.4
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N
Attack Vector
Network
Attack Complexity
High
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
CVE Published
Jan 14, 2026 - 07:16 nvd
MEDIUM 4.4

Tags

WordPress XSS

Description

The WP Allowed Hosts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'allowed-hosts' parameter in all versions up to, and including, 1.0.8 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 affects multi-site installations and installations where unfiltered_html has been disabled.

Analysis

Stored XSS in WP Allowed Hosts plugin through 1.0.8 allows authenticated administrators to inject malicious scripts via the 'allowed-hosts' parameter on multi-site WordPress installations or those with disabled unfiltered_html. Affected administrators can execute arbitrary JavaScript that persists and runs for all users accessing injected pages. …

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Remediation

Within 30 days: Identify affected systems running all and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

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Priority Score

22
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +22
POC: 0

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CVE-2026-0734 vulnerability details – vuln.today
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