CVE-2025-13543

HIGH 8.8

PostGallery <= 1.12.5 - Authenticated (Subscriber+) Arbitrary File Upload

CVSS Score

8.8

EPSS Score

0.0%

EPSS Percentile

0th

The PostGallery plugin for WordPress is vulnerable to arbitrary file uploads due to incorrect file type validation in the 'PostGalleryUploader' class functions in all versions up to, and including, 1.12.5. This makes it possible for authenticated attackers, with subscriber-level and above permissions, to upload arbitrary files on the affected site's server which may make remote code execution possible.

CWE	CWE-434
Vendor	rtowebsites
Product	postgallery
Published	Dec 4, 2025
Last Updated	Apr 8, 2026

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CVSS v3 Breakdown

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

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

rtowebsites / PostGallery

0 ≤ 1.12.5

References

NVD ↗ CVE.org ↗ EPSS Data ↗

wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/13348eb5-5001-4ec4-bc6a-44795bbed203?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/postgallery/tags/1.12.5/admin/PostGalleryUploader.php

Credits

Moose Love