CVE-2025-11828

MEDIUM

Magazine Companion <= 1.2.3 - Authenticated Stored Cross-Site Scripting via headerHtmlTag Attribute

Title source: llm
STIX 2.1

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.

References (4)

Core 4

Scores

CVSS v3 6.4
EPSS 0.0020
EPSS Percentile 9.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-79
Status published
Products (2)
pubudu-malalasekara/Magazine Companion < 1.2.3
pubudu-malalasekara/Post Blocks & Tools < 1.2.3
Published Nov 11, 2025
Tracked Since Feb 18, 2026