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Vulnerability record · CVE-2026-1730 · published 3 February 2026

CVE-2026-1730: Unrestricted file upload vulnerability

The OS DataHub Maps plugin for WordPress is vulnerable to arbitrary file uploads due to incorrect file type validation in the 'OS_DataHub_Maps_Admin::add_file_and_ext' function in all versions up to, and including, 1.8.3. This makes it possible for authenticated attackers, with Author-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible.

8.8 CVSS 3.1 High EPSS 0.55% · top 56.1% CWE-434 · Unrestricted file upload Deferred
8.8CVSS 3.1 base score
0.55%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
5References
17 Jun 2026Last modified by NVD

Description

The OS DataHub Maps plugin for WordPress is vulnerable to arbitrary file uploads due to incorrect file type validation in the 'OS_DataHub_Maps_Admin::add_file_and_ext' function in all versions up to, and including, 1.8.3. This makes it possible for authenticated attackers, with Author-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible.

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

References

LinkTags
https://plugins.trac.wordpress.org/browser/os-datahub-maps/trunk/include/osmap-admin.php?rev=3449192#L51
https://plugins.trac.wordpress.org/browser/os-datahub-maps/trunk/include/osmap-admin.php?rev=3449192#L67
https://plugins.trac.wordpress.org/browser/os-datahub-maps/trunk/os-datahub-maps.php?rev=3449192#L87
https://plugins.trac.wordpress.org/changeset/3452323/os-datahub-maps
https://www.wordfence.com/threat-intel/vulnerabilities/id/c32ba2a0-a9a7-4f17-8169-912cecc40b7b?source=cve

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Source: NIST National Vulnerability Database (record CVE-2026-1730), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.