Medium severity6.4NVD Advisory· Published Apr 8, 2026· Updated Apr 24, 2026
CVE-2026-5711
CVE-2026-5711
Description
The Post Blocks & Tools plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'sliderStyle' block attribute in the Posts Slider block in all versions up to, and including, 1.3.0 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Affected products
2- Range: <=1.3.0
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
5- plugins.trac.wordpress.org/browser/bnm-blocks/tags/1.3.0/src/blocks/posts/slider/view.phpnvd
- plugins.trac.wordpress.org/browser/bnm-blocks/tags/1.3.1/src/blocks/posts/slider/view.phpnvd
- plugins.trac.wordpress.org/browser/bnm-blocks/trunk/src/blocks/posts/slider/view.phpnvd
- plugins.trac.wordpress.org/changesetnvd
- www.wordfence.com/threat-intel/vulnerabilities/id/aeada6dc-0851-45e8-ada9-ff0427b7f17anvd
News mentions
1- Wordfence Intelligence Weekly WordPress Vulnerability Report (April 6, 2026 to April 12, 2026)Wordfence Blog · Apr 16, 2026