CVE-2026-5711
MediumCVSS 6.4Exploitation Probability (EPSS)
Low risk9th percentile - higher than 9% of all known CVEs
Summary
The Post Blocks & Tools plugin for WordPress up to version 1.3.0 inclusive contains a Stored Cross-Site Scripting vulnerability via the 'sliderStyle' attribute in the Posts Slider block, due to insufficient input sanitization and output escaping.
Risk Assessment
Authenticated attackers with author-level access or higher can inject arbitrary scripts that execute when other users view the page, potentially leading to session theft or data compromise.
Recommendation
It is recommended to update the Post Blocks & Tools plugin to the latest available version that fixes this vulnerability.
Original NVD description (English source)
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.