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Tool Directory

CVE-2025-13543

HighPublished

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

Published: Dec 4, 2025
Updated: Apr 8, 2026
Assigning CNA: Wordfence
Evidence observed: Aug 9, 2026

Primary CVSS

8.8/ 10High

nvd · CVSS 3.1

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

EPSS probability estimate

0.8%

Low · next 30 days

Percentile: 53.2%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

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.

Sources

PostGallery-CVE-ReportResearch
Disclosure for CVE-2025-13543

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