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PatchSiren cyber security CVE debrief

CVE-2026-78262 weDevs CVE debrief

A critical vulnerability was found in the WP Project Manager plugin, affecting versions up to 4.0.6. This vulnerability allows unauthenticated PHP object injection, which could lead to severe consequences if exploited.

Vendor
weDevs
Product
WP Project Manager
CVSS
CRITICAL 9.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-08-24
Original CVE updated
2026-10-12
Advisory published
2026-08-24
Advisory updated
2026-10-12

Who should care

Administrators and security teams responsible for WordPress installations using the WP Project Manager plugin should assess exposure and prioritize remediation.

Why it matters

CVE-2026-78262 is a critical vulnerability in the WP Project Manager plugin that allows unauthenticated PHP object injection. Defenders should care because it could lead to severe consequences if exploited, including potential code execution and data breaches. Administrators and security teams responsible for WordPress installations using this plugin should assess exposure and prioritize remediation. The impact of this vulnerability requires verification from official sources, and its exploitation has not been confirmed.

  • Potential for code execution on affected systems requires verification.
  • Possible data breaches or unauthorized access due to PHP object injection.
  • Need for immediate remediation to prevent exploitation.

Technical summary

The WP Project Manager plugin, version 4.0.6 or earlier, is vulnerable to unauthenticated PHP object injection. This vulnerability is rated as Critical with a CVSS score of 9.8.

Defensive priority

High priority remediation is recommended for systems using the WP Project Manager plugin version 4.0.6 or earlier.

Recommended defensive actions

  • Immediately update the WP Project Manager plugin to a version beyond 4.0.6.
  • Review and restrict access to the plugin's functionality to prevent unauthorized use.
  • Monitor systems using the WP Project Manager plugin for suspicious activity.

Evidence notes

The CVE record and NVD entry provide details on the vulnerability. However, additional information from other sources is limited.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-78262 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-78262

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-78262 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-78262

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.