---
title: "CVE-2026-104764: Post Export Import with Media WordPress plugin - Insecure Deserialization"
description: "Post Export Import with Media WordPress plugin <= 1.17.1 contains a PHP Object Injection caused by deserialization of untrusted input, letting authenticated administrators inject PHP objects, exploit requires presence of a POP chain in other plugins or themes."
url: https://panop.io/threat-heartbeat/CVE-2026-104764/
---

# CVE-2026-104764 Post Export Import with Media WordPress plugin - Insecure Deserialization

Post Export Import with Media WordPress plugin <= 1.17.1 contains a PHP Object Injection caused by deserialization of untrusted input, letting authenticated administrators inject PHP objects, exploit requires presence of a POP chain in other plugins or themes.

CVSS base score 7.2 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

0.64% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-104764)

## Details

Type

Insecure Deserialization

Impact

Remote Code Execution, Data Tampering, Information Disclosure, File System Write, File System Read

CVSS vector

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

Published

14 October 2026

Updated

15 October 2026

Weakness

[CWE-502](https://cwe.mitre.org/data/definitions/502.html)

## Vendor fix

Update to the latest version beyond 1.17.1.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-104764](https://nvd.nist.gov/vuln/detail/CVE-2026-104764)
- [https://plugins.trac.wordpress.org/browser/post-export-import-with-media/tags/1.17.1/includes/class-page-handler.php#L877](https://plugins.trac.wordpress.org/browser/post-export-import-with-media/tags/1.17.1/includes/class-page-handler.php#L877)
- [https://plugins.trac.wordpress.org/changeset/3726397/post-export-import-with-media/trunk/includes/class-page-handler.php](https://plugins.trac.wordpress.org/changeset/3726397/post-export-import-with-media/trunk/includes/class-page-handler.php)
- [https://www.wordfence.com/threat-intel/vulnerabilities/id/bf16e980-7cee-4f62-8a2d-0cf73fc2ca26?source=cve](https://www.wordfence.com/threat-intel/vulnerabilities/id/bf16e980-7cee-4f62-8a2d-0cf73fc2ca26?source=cve)
- [https://plugins.svn.wordpress.org/post-export-import-with-media/trunk/](https://plugins.svn.wordpress.org/post-export-import-with-media/trunk/)
- [https://plugins.trac.wordpress.org/browser/post-export-import-with-media/tags/1.17.1/includes/class-page-handler.php#L230](https://plugins.trac.wordpress.org/browser/post-export-import-with-media/tags/1.17.1/includes/class-page-handler.php#L230)
- [https://plugins.trac.wordpress.org/browser/post-export-import-with-media/tags/1.17.1/includes/class-page-handler.php#L370](https://plugins.trac.wordpress.org/browser/post-export-import-with-media/tags/1.17.1/includes/class-page-handler.php#L370)
- [https://plugins.trac.wordpress.org/browser/post-export-import-with-media/tags/1.17.1/includes/class-page-handler.php#L646](https://plugins.trac.wordpress.org/browser/post-export-import-with-media/tags/1.17.1/includes/class-page-handler.php#L646)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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