CVE-2026-6378
Last modified
CVE-2026-6378 is a medium-severity vulnerability rated 6.4/10 on the CVSS scale. The Maxi Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `/wp-json/maxi-blocks/v1.0/style-card` REST API endpoint in all versions up to, and including, 2.1.9 due to insufficient input sanitization and output escaping of the `sc_styles` parameter. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts that execute on every page where the plugin's style card styles are loaded, including across the entire WordPress admin panel.. EPSS estimates a 0.23% chance of exploitation in the next 30 days.
Description
The Maxi Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `/wp-json/maxi-blocks/v1.0/style-card` REST API endpoint in all versions up to, and including, 2.1.9 due to insufficient input sanitization and output escaping of the `sc_styles` parameter. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts that execute on every page where the plugin's style card styles are loaded, including across the entire WordPress admin panel.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Weakness Enumeration
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2026-6378?
How severe is CVE-2026-6378?
How do I fix CVE-2026-6378?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-63766GPT-SoVITS through 20250606v2pro contains an OS command inje…9.8
- CVE-2026-63767ktransformers through 0.6.3, fixed in commit def0f93, contai…9.8
- CVE-2026-63768cal.diy through 6.2.0 contains an open redirect vulnerabilit…5.3
- CVE-2026-63769Huginn through 2022.08.18 contains a server-side request for…7.7
- CVE-2026-63770Glance through 0.8.5 contains an IP address spoofing vulnera…8.2
- CVE-2026-63771Adminer before 5.4.3 contains a cookie injection vulnerabili…7.1
- CVE-2026-6379The WP Photo Album Plus WordPress plugin before 9.1.11.001 d…8.6
- CVE-2026-63793In the Linux kernel, the following vulnerability has been re…7.8
- CVE-2026-63794In the Linux kernel, the following vulnerability has been re…7.8
- CVE-2026-63795In the Linux kernel, the following vulnerability has been re…10
- CVE-2026-63796In the Linux kernel, the following vulnerability has been re…8.8
- CVE-2026-63797In the Linux kernel, the following vulnerability has been re…8.4
Are you affected by CVE-2026-6378?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST