HTTP Headers WordPress Plugin CVE-2026-1379

EUVD-2026-24634 MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2026-04-22 Wordfence

GHSA-8h43-r57g-hmff

WordPress XSS

4.4

CVSS 3.1

CVSS VectorNVD

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

Analysis Generated

Apr 22, 2026 - 09:58 vuln.today

DescriptionNVD

The HTTP Headers plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 1.19.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions 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.

AnalysisAI

Stored cross-site scripting in HTTP Headers plugin for WordPress up to version 1.19.2 allows authenticated administrators to inject arbitrary scripts into admin settings that execute when users access affected pages. This vulnerability is limited to multi-site installations or sites where the unfiltered_html capability has been disabled, significantly reducing real-world exposure. …

Analysis

Detailed AI-generated intelligence summary covering attack vector, impact assessment, affected versions, remediation steps, and indicators of compromise.

POChttps://••••••••••.com/exploit

PATCHhttps://••••••••••.com/patch

ADVISORYhttps://••••••••••.com/advisory

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CVE-2026-1379 vulnerability details – vuln.today

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