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Description

The Magazine Companion plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'headerHtmlTag' attribute in the bnm-blocks/featured-posts-1 block in all versions up to, and including, 1.2.3. This is due to insufficient input sanitization and output escaping when using user-supplied values as HTML tag names. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

PUBLISHED Reserved 2025-10-15 | Published 2025-11-11 | Updated 2025-11-14 | Assigner Wordfence




MEDIUM: 6.4CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Problem types

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

Default status
unaffected

* (semver)
affected

Timeline

2025-11-10:Disclosed

Credits

Djaidja Moundjid finder

References

www.wordfence.com/...-5054-46fd-b22e-eac59b581a3c?source=cve

wordpress.org/plugins/bnm-blocks

plugins.trac.wordpress.org/...osts/featured-posts-1/view.php

cve.org (CVE-2025-11828)

nvd.nist.gov (CVE-2025-11828)

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