myBB Forums 1.8.26 Stored Cross-Site Scripting via Template Management
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myBB Forums 1.8.26 contains a stored cross-site scripting vulnerability in the template management system that allows authenticated administrators to inject malicious scripts when creating new templates. Attackers can exploit this vulnerability by inserting script payloads in the template title field when adding new templates through the 'Templates and Style' > 'Templates' > 'Manage Templates' > 'Global Templates' interface, causing arbitrary JavaScript to execute when the template is viewed.
No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.
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