WordPress security changelog
CRITICAL CVE-2026-25429 Deferred

Nexa Blocks: Code execution

Nexa Blocks is affected by code execution. Exposure depends on how the affected operation is made reachable by the site. Successful exploitation can run attacker-controlled code in the WordPress hosting account. The published affected range is <= 1.1.1.

CVE / CNA score 9.8 CVSS 3.1 · audit@patchstack.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
Nexa Blocks
Plugin slug
nexa-blocks
Affected
<= 1.1.1
Safe version
> 1.1.1
Published
Mar 25, 2026
Weakness
CWE-502 — Deserialization of Untrusted Data

This CVE was published Mar 25, 2026 and is one of 5 known issues for this plugin.

Update, patch or deactivate.

Update Nexa Blocks to a release after 1.1.1, or disable and remove it until a fixed version is available.

A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Technical description

Deserialization of Untrusted Data vulnerability in wpdive Nexa Blocks nexa-blocks allows Object Injection.This issue affects Nexa Blocks: from n/a through <= 1.1.1.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary and upstream sources