CVE-2026-104763: Path Traversal (CVSS 4.9)

Description

The Post Export Import with Media plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 1.17.1 via the 'file_path' parameter parameter. This makes it possible for authenticated attackers, with administrator-level access and above, to read the contents of arbitrary files on the server, which can contain sensitive information. This requires the attacker to upload a crafted ZIP archive containing a media_metadata.json file with path traversal sequences in the file_path field while specifying an allowed file extension for the destination filename to bypass the extension guard introduced in version 1.13.2.

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CVSS v3.1 Score

4.9

MEDIUM

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

EPSS — Exploit Prediction

0.0073

Probability of exploitation

0.53%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-22 Path Traversal

References

Other References

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-media-handler.php#L500 https://plugins.trac.wordpress.org/browser/post-export-import-with-media/tags/1.17.1/includes/class-media-handler.php#L573 https://plugins.trac.wordpress.org/browser/post-export-import-with-media/tags/1.17.1/includes/class-media-handler.php#L575 https://plugins.trac.wordpress.org/browser/post-export-import-with-media/tags/1.17.1/includes/class-media-handler.php#L982 https://plugins.trac.wordpress.org/changeset/3726363/post-export-import-with-media/trunk/includes/class-media-handler.php https://www.wordfence.com/threat-intel/vulnerabilities/id/71a6ba3d-0473-46c9-8040-b415807f4073?source=cve

Frequently Asked Questions

What is CVE-2026-104763? +

The Post Export Import with Media plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 1.17.1 via the 'file_path' parameter parameter. This makes it possible for authenticated attackers, with administrator-level access and above, to read the contents of arbitrary files on the server, which can contain sensitive information. This requires the attacker to upload a crafted ZIP archive containing a media_metadata.json file with path traversal sequences in the file_path field while specifying an allowed file extension for the destination filename to bypass the extension guard introduced in version 1.13.2. It has a CVSS v3.1 base score of 4.9 (MEDIUM).

How severe is CVE-2026-104763? +

CVE-2026-104763 has a CVSS v3.1 score of 4.9 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0073, placing it in the 1th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-104763? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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