Modula 2.13.1 - 2.13.2 - Authenticated (Author+) Arbitrary File Upload via Race Condition

7.5
Unrestricted Upload of File with Dangerous Type
CVE CVE-2025-13646
CVSS 7.5 (High)
Publicly Published December 2, 2025
Last Updated December 3, 2025
Researcher 0xQRx

Description

The Modula Image Gallery plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'ajax_unzip_file' function in versions 2.13.1 to 2.13.2. This makes it possible for authenticated attackers, with Author-level access and above, to upload arbitrary files with race condition on the affected site's server which may make remote code execution possible.

Learn more about Arbitrary File Upload vulnerabilities and how to prevent them.

References

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Vulnerability Details for Modula Image Gallery – Photo Grid & Video Gallery

Software Type Plugin
Software Slug modula-best-grid-gallery (view on wordpress.org)
Patched? Yes
Remediation Update to version 2.13.3, or a newer patched version
Affected Version
  • 2.13.1 - 2.13.2
Patched Version
  • 2.13.3

Recent vulnerabilities in Modula Image Gallery – Photo Grid & Video Gallery

# Title CVE ID CVSS Researchers Date
1 Modula Image Gallery – Photo Grid & Video Gallery 2.14.25-2.14.30 - Authenticated (Contributor+) Stored Cross-Site Scripting CVE-2026-65475 6.4 Abdullah Kareem "cyberkareem" July 22, 2026
2 Modula Image Gallery – Photo Grid & Video Gallery <= 2.14.23 - Authenticated (Subscriber+) Stored Cross-Site Scripting CVE-2026-42688 6.4 Nguyen Ba Khanh May 26, 2026
3 Modula Image Gallery – Photo Grid & Video Gallery <= 2.14.18 - Authenticated (Author+) PHP Object Injection CVE-2026-39481 7.5 daroo April 20, 2026
4 Modula Image Gallery – Photo Grid & Video Gallery <= 2.13.6 - Missing Authorization to Authenticated (Contributor+) Arbitrary Post/Page Editing CVE-2026-1254 4.3 type5afe February 13, 2026
5 Modula Image Gallery <= 2.13.4 - Authenticated (Author+) Stored Cross-Site Scripting CVE-2026-23976 6.4 johska February 4, 2026
6 Image Gallery – Photo Grid & Video Gallery <= 2.13.3 - Missing Authorization to Authenticated (Author+) Arbitrary Gallery Modification CVE-2025-14003 4.3 Athiwat Tiprasaharn (Jitlada), Itthidej Aramsri (Boeing777), Powpy, Waris Damkham, Varakorn Chanthasri (iCreaM), Peerapat Samatathanyakorn, Sopon Tangpathum (SoNaJaa) December 15, 2025
7 Image Gallery – Photo Grid & Video Gallery (Modula) <= 2.13.3 - Missing Authorization to Arbitrary Directory Listing CVE-2025-13891 6.5 Dmitrii Ignatyev December 11, 2025
8 Modula 2.13.1 - 2.13.2 - Authenticated (Author+) Arbitrary File Deletion CVE-2025-13645 7.2 ISMAILSHADOW December 2, 2025
9 Modula Image Gallery <= 2.13.6 - Missing Authorization CVE-2026-24939 4.3 Que Thanh Tuan November 22, 2025
10 Image Gallery – Photo Grid & Video Gallery <= 2.12.28 - Improper Authorization to Authenticated (Author+) Arbitrary Image File Move CVE-2025-12494 4.3 Dmitrii Ignatyev November 14, 2025

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