Description
The WPMK Block plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'class' shortcode attribute in all versions up to and including 1.0.1. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes. Specifically, in the wpmk_block_shortcode() function, the 'class' attribute is extracted from user-controllable shortcode attributes and directly concatenated into an HTML div element's class attribute without any escaping (e.g., esc_attr()). 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.
INFO
Published Date :
2026-04-22T07:45:36.110Z
Last Modified :
2026-04-22T14:13:03.230Z
Source :
Wordfence
AFFECTED PRODUCTS
The following products are affected by CVE-2026-4125 vulnerability.
| Vendors | Products |
|---|---|
| Wordpress |
|
| Wpmkorg |
|
REFERENCES
Here, you will find a curated list of external links that provide in-depth information to CVE-2026-4125.
