CVE-2025-8418

B Slider- Gutenberg Slider Block for WP <= 1.1.30 - Authenticated (Subscriber+) Missing Authorization to Arbitrary Plugin Installation

View on CVE.org

Published Aug 12, 2025 CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

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.

Analysis

Technical impact

The B Slider- Gutenberg Slider Block for WP plugin suffers from a missing capability check in the activated_plugin function, allowing authenticated users with Subscriber role or higher to install arbitrary plugins. This flaw can be leveraged to execute remote code on the WordPress site, representing a serious confidentiality, integrity, and availability threat. The weakness is classified as CWE-862, reflecting an authorization failure.

Affected Systems

The vulnerability affects the bSlider – Create Responsive Image, Post, Product, and Video Sliders plugin supplied by bplugins. All versions up to and including 1.1.30 are impacted; newer releases beyond 1.1.30 contain the fix.

Risk and Exploitability

The likely attack vector is an authenticated user with Subscriber role or higher in a WordPress installation exploiting the missing capability check in the activated_plugin function to install malicious plugins. With a CVSS score of 8.8, this flaw allows remote code execution once the attacker has legitimate credentials. The EPSS score of <1% indicates that exploitation activity is currently low, and the vulnerability is not listed in the CISA KEV catalog. Nevertheless, any subscriber or higher role user can potentially install and activate harmful plugins, posing a significant threat to confidentiality, integrity, and availability.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

bplugins

bSlider – Create Responsive Image, Post, Product, and Video Sliders

unaffected

Version	Status	Constraints
`0`	affected	≤ 1.1.30

No data.

Vendor	Product	Versions
Wordpress	Wordpress	—

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

Upgrade the bSlider plugin to a version newer than 1.1.30, ensuring the capability checks are applied.
Restrict the ‘install_plugins’ capability for Subscriber-level and other non-administrative roles, using the built‑in role editor or a role‑management plugin before the upgrade.
Audit the current plugin inventory for any unauthorized or suspicious plugins installed through the vulnerability and remove them if present.

Generated by OpenCVE AI on June 18, 2026 at 11:30 UTC.

Tracking

Advisories

Source	ID	Title
EUVD	EUVD-2025-24224	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.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.726% probability within 30 days)

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
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
https://www.wordfence.com/threat-intel/vulnerabilities/id/deffd646-5117-4086-bf4b-8a17ffdaad8b?source=cve

History

Aug 12, 2025 8:00 PM First appearance in the feed. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Wordpress Wordpress wordpress
Vendors & Products		Wordpress Wordpress wordpress

Aug 12, 2025 5:15 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Aug 12, 2025 6:45 AM Description updated. Title updated. Weaknesses updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
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.
Title		B Slider- Gutenberg Slider Block for WP <= 1.1.30 - Authenticated (Subscriber+) Missing Authorization to Arbitrary Plugin Installation
Weaknesses		CWE-862
References		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 https://www.wordfence.com/threat-intel/vulnerabilities/id/deffd646-5117-4086-bf4b-8a17ffdaad8b?source=cve
Metrics		cvssV3_1 `{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}`