Is CVE-2026-1857 actively exploited?

No active exploitation of CVE-2026-1857 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-1857 be exploited remotely?

Yes. CVE-2026-1857 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-1857?

CVE-2026-1857 has a CVSS score of 4.3 (MEDIUM) and an EPSS exploitation probability of 0.03%.

HOME VULNERABILITIESCVE-2026-1857

MEDIUM

CVE-2026-1857

CWE-918Published: February 18, 2026· Updated: Feb 18, 2026

4.3

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:7.2th

Official Description

The Gutenberg Blocks with AI by Kadence WP plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 3.6.1. This is due to insufficient validation of the `endpoint` parameter in the `get_items()` function of the GetResponse REST API handler. The endpoint's permission check only requires `edit_posts` capability (Contributor role) rather than `manage_options` (Administrator). This makes it possible for authenticated attackers, with Contributor-level access and above, to make server-side requests to arbitrary endpoints on the configured GetResponse API server, retrieving sensitive data such as contacts, campaigns, and mailing lists using the site's stored API credentials. The stored API key is also leaked in the request headers.

NVD Source

Technical Analysis

CVE-2026-1857 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.