Is CVE-2026-1303 actively exploited?

No active exploitation of CVE-2026-1303 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-1303 be exploited remotely?

Yes. CVE-2026-1303 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-1303?

CVE-2026-1303 has a CVSS score of 5.3 (MEDIUM) and an EPSS exploitation probability of 0.03%.

HOME VULNERABILITIESCVE-2026-1303

MEDIUM

CVE-2026-1303

CWE-862Published: February 14, 2026· Updated: Feb 18, 2026

5.3

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:10.0th

Official Description

The MailChimp Campaigns plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 3.2.4. This is due to missing capability checks on the `mailchimp_campaigns_manager_disconnect_app` function that is hooked to the AJAX action of the same name. This makes it possible for authenticated attackers, with Subscriber-level access and above, to disconnect the site from its MailChimp synchronization app, disrupting automated email campaigns and marketing integrations.

NVD Source

Technical Analysis

CVE-2026-1303 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.