Is CVE-2026-1890 actively exploited?

Yes. CVE-2026-1890 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, which means exploitation in the wild has been confirmed.

Can CVE-2026-1890 be exploited remotely?

Yes. CVE-2026-1890 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-1890?

CVE-2026-1890 has a CVSS score of 5.3 (MEDIUM).

HOME VULNERABILITIESCVE-2026-1890

MEDIUMCISA KEVIN THE WILD

CVE-2026-1890

Published: March 26, 2026· Updated: Mar 26, 2026

5.3

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:11.4th

Official Description

The LeadConnector WordPress plugin before 3.0.22 does not have authorization in a REST route, allowing unauthenticated users to call it and overwrite existing data

NVD Source

Technical Analysis

CVE-2026-1890 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.

CISA has added CVE-2026-1890 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.