Is CVE-2026-6401 actively exploited?

No active exploitation of CVE-2026-6401 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-6401 be exploited remotely?

Yes. CVE-2026-6401 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-6401?

CVE-2026-6401 has a CVSS score of 4.3 (MEDIUM).

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MEDIUM

CVE-2026-6401

CWE-352Published: May 20, 2026· Updated: May 20, 2026

4.3

CVSS v3.1

EPSS:0.02%probability of exploitation in 30 daysPercentile:7.0th

Official Description

The Bottom Bar plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to and including 0.1.7. This is due to missing nonce verification on the plugin's settings update forms handled in bottom-bar-admin.php. None of the three settings forms (main settings, sharing services, restore defaults) include a wp_nonce_field(), and the server-side processing code never calls check_admin_referer() or any equivalent nonce validation before processing POST data and calling update_option(). This makes it possible for unauthenticated attackers to trick a logged-in administrator into submitting a crafted request that updates plugin configuration options, such as changing the language, maximum post counts, or enabled sharing services.

NVD Source

Technical Analysis

CVE-2026-6401 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.