CVE-2025-4684

MEDIUM

BlockSpare <= 3.2.13.1 - Authenticated Stored XSS via Image Carousel/Slider Widget

Title source: llm

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.

References (2)

Core 2

Core References

Product

https://plugins.trac.wordpress.org/browser/blockspare/trunk/dist/blocks.js

Third Party Advisory

https://www.wordfence.com/threat-intel/vulnerabilities/id/0f4f8b84-3f65-430b-b749-6afae8d53153?source=cve

Scores

CVSS v3 6.4

EPSS 0.0024

EPSS Percentile 15.6%

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)

blockspare/BlockSpare — News, Magazine and Blog Addons for (Gutenberg) Block Editor < 3.2.13.1

blockspare/BlockSpare: Gutenberg Blocks & Patterns for Blogs, Magazines, Business Sites – Post Grids, Sliders, Carousels, Counters, Page Builder & Starter Site Imports, No Coding Needed < 3.2.13.1

Published Aug 01, 2025

Tracked Since Feb 18, 2026