BlockSpare: Gutenberg Blocks & Patterns for Blogs, Magazines, Business Sites <= 3.2.13.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Image Carousel and Image Slider Widgets
Vulnerability Description
The BlockSpare: Gutenberg Blocks & Patterns for Blogs, Magazines, Business Sites – Post Grids, Sliders, Carousels, Counters, Page Builder & Starter Site Imports, No Coding Needed plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the HTML attributes of Image Carousel and Image Slider widgets in all versions up to, and including, 3.2.13.1 due to insufficient input sanitization and output escaping. 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Craig Smith
References
Affected Vendor
blockspare
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