CVE-2026-25429Network attack vector

Unauthenticated object injection via undisclosed deserialization

Published Mar 25, 2026 · Updated Mar 25, 2026

Deserialization of untrusted data in WPDive Nexa Blocks 1.1.1 and earlier allows remote attackers to inject PHP objects. The published record does not identify the affected function or input path, stating only that the plugin deserializes untrusted data. No authentication or user interaction is required, but a usable POP chain is required for follow-on code execution, data modification, file access, or service interruption.

CVSS severity9.8
Critical
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Deserialization of untrusted data in WPDive Nexa Blocks 1.1.1 and earlier allows remote attackers to inject PHP objects. The published record does not identify the affected function or input path, stating only that the plugin deserializes untrusted data. No authentication or user interaction is required, but a usable POP chain is required for follow-on code execution, data modification, file access, or service interruption.

The record

CVE
CVE-2026-25429
Published
Mar 25, 2026
Updated
Mar 25, 2026
Vendor
WPDive
Product
Nexa Blocks
Classifications
CWE-502, CAPEC-586, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=n/a <=<= 1.1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WPDive · Nexa Blocksversion=n/a <=<= 1.1.1

Published CVSS scores

9.8PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
CAPEC-586Object Injection
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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