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CVE-2025-13646

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

Published: Dec 3, 2025Updated: Dec 15, 2025 Sources: CVE List NVDCWE-434
NVD MITRE
7.5CVSSHIGH
EPSS Score
0.7%
Top 53.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Am I actually vulnerable?1 Nuclei template available — see how to check your systems. How to verify

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.

CVSS Vector Breakdown

AV:NAC:HPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-434

Affected Products

Image Gallery – Photo Grid & Video Gallerywpchill
Mixed
Web & CMS Plugins / wordpress-plugin
modula image gallerywpchill
Mixed
Web & CMS Plugins / wordpress-plugin
wpchillcommercialWeb & CMS Pluginsaka wp chill

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

3 techniques
Command and Control
Initial Access
Persistence
View detailed technique mapping

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/59ee0ca2-846d-4ae8-ad19-7c3826861aeb?source=cve
wordfence.com
https://github.com/WPChill/modula-lite/blob/master/includes/admin/class-modula-gallery-upload.php#L1103
github.com
https://plugins.trac.wordpress.org/changeset/3395701/modula-best-grid-gallery#file5
plugins.trac.wordpress.org
and 2 more references View all →

Timeline

Published
Dec 3, 2025
Last Updated
Dec 15, 2025

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