The Responsive Header plugin for WordPress is vulnerable to Stored Cross-Site Scripting via multiple plugin settings parameters in all versions up to, and including, 1.0 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.
Metrics
Affected Vendors & Products
References
History
Mon, 26 Jan 2026 19:15:00 +0000
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ssvc
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Mon, 26 Jan 2026 12:00:00 +0000
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Wordpress
Wordpress wordpress |
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Wordpress
Wordpress wordpress |
Sat, 24 Jan 2026 09:15:00 +0000
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| Description | The Responsive Header plugin for WordPress is vulnerable to Stored Cross-Site Scripting via multiple plugin settings parameters in all versions up to, and including, 1.0 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. | |
| Title | Responsive Header Plugin <= 1.0 - Authenticated (Administrator+) Stored Cross-Site Scripting via Settings Parameters | |
| Weaknesses | CWE-79 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: Wordfence
Published: 2026-01-24T09:08:06.373Z
Updated: 2026-01-26T17:44:00.421Z
Reserved: 2026-01-21T18:44:21.554Z
Link: CVE-2026-1300
Updated: 2026-01-26T17:43:57.587Z
Status : Awaiting Analysis
Published: 2026-01-24T09:15:54.353
Modified: 2026-01-26T15:03:33.357
Link: CVE-2026-1300
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