Magazine Companion <= 1.2.3 - Authenticated (Contributor+) Stored Cross-Site Scripting

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Summary

CVECVE-2025-11828
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-11-11 04:15:42 UTC
Updated2026-04-08 18:23:20 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 6.4 MEDIUM from [email protected]

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

EPSS: 0.000520000 probability, percentile 0.163580000 (date 2026-04-08)

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

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
3.1CNADECLARED6.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Pubudu-malalasekara Post Blocks Tools affected 1.2.3 semver Not specified

References

ReferenceSourceLinkTags
www.wordfence.com/threat-intel/vulnerabilities/id/8fa2e98b-5054-46fd-b22e-eac59... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/bnm-blocks/tags/1.2.3/src/blocks/posts/featured-posts... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/changeset/3392064 [email protected] plugins.trac.wordpress.org
wordpress.org/plugins/bnm-blocks [email protected] wordpress.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Djaidja Moundjid (en)

Additional Advisory Data

SourceTimeEvent
CNA2025-11-10T15:05:52.000ZDisclosed
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